| 释义 |
coupling
cou·pling C0695700 (kŭp′lĭng)n.1. The act of linking together or forming couples.2. The act of uniting sexually.3. A device that links or connects.4. Electronics The transfer of electricity from one circuit to another.5. Chemistry Facilitation or acceleration of one chemical process due to the presence or action of another.6. The body part of a four-footed animal that connects the hindquarters to the forequarters.coupling (ˈkʌplɪŋ) n1. (Mechanical Engineering) a mechanical device that connects two things2. (Railways) a device for connecting railway cars or trucks together3. (Anatomy) the part of the body of a horse, dog, or other quadruped that lies between the forequarters and the hindquarters4. (Electronics) electronics the act or process of linking two or more circuits so that power can be transferred between them usually by mutual induction, as in a transformer, or by means of a capacitor or inductor common to both circuits. See also direct coupling5. (General Physics) physics an interaction between different properties of a system, such as a group of atoms or nuclei, or between two or more systems6. (Genetics) genetics the occurrence of two specified nonallelic genes from the same parent on the same chromosomecou•pling (ˈkʌp lɪŋ)
n. 1. the act of one that couples. 2. a device for joining two rotating shafts semipermanently at their ends so as to transmit torque from one to the other. 3. coupler (def. 3). 4. a. the association of two circuits or systems in such a way that power may be transferred from one to the other. b. a device or expedient to ensure this. 5. the part of the body between the tops of the shoulder blades and the tops of the hip joints in a dog, horse, etc. [1300–50] Thesaurus| Noun | 1. |  coupling - a connection (like a clamp or vise) between two things so they move togetheryokeconnecter, connector, connective, connection, connexion - an instrumentality that connects; "he soldered the connection"; "he didn't have the right connector between the amplifier and the speakers" | | 2. |  coupling - a mechanical device that serves to connect the ends of adjacent objectscouplerclevis - a coupler shaped like the letter U with holes through each end so a bolt or pin can pass through the holes to complete the coupling; used to attach a drawbar to a plow or wagon or trailer etc.clutch - a coupling that connects or disconnects driving and driven parts of a driving mechanism; "this year's model has an improved clutch"fluid drive - an automotive power couplingmechanical device - mechanism consisting of a device that works on mechanical principlesswivel - a coupling (as in a chain) that has one end that turns on a headed pinturnbuckle - an oblong metal coupling with a swivel at one end and an internal thread at the other into which a threaded rod can be screwed in order to form a unit that can be adjusted for length or tensionuniversal joint, universal - coupling that connects two rotating shafts allowing freedom of movement in all directions; "in motor vehicles a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps" | | 3. |  coupling - the act of pairing a male and female for reproductive purposes; "the casual couplings of adolescents"; "the mating of some species occurs only in the spring"mating, pairing, sexual union, union, conjugationsex, sex activity, sexual activity, sexual practice - activities associated with sexual intercourse; "they had sex in the back seat"assortative mating - mating of individuals having more traits in common than likely in random matingdisassortative mating - mating of individuals having traits more dissimilar than likely in random matinghybridisation, hybridization, hybridizing, interbreeding, crossbreeding, crossing, cross - (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybridsinbreeding - the act of mating closely related individualsservicing, service - the act of mating by male animals; "the bull was worth good money in servicing fees" |
couplingnounA point or position at which two or more things are joined:connection, joint, junction, juncture, seam, union.Translationscouple (ˈkapl) noun1. two; a few. Can I borrow a couple of chairs?; I knew a couple of people at the party, but not many. 一對，一些 一对，三两个 2. a man and wife, or a boyfriend and girlfriend. a married couple; The young couple have a child. 夫妻，男女朋友 夫妻，情侣 verb to join together. The coaches were coupled (together), and the train set off. 連接 连接ˈcouplet (-lit) noun two lines of verse, one following the other, which rhyme with each other. 對句，對聯 对句（相连并押韵的两行诗），对联 ˈcoupling noun a link for joining things together. The railway carriage was damaged when the coupling broke. 列車廂車鉤 连接器（尤指列车等的车钩） coupling
couple (something) (on)to (something)To connect or fasten two things together. We still need to couple the trailer to the truck before we can leave. I coupled the latch onto the peg, so it should stay secure.See also: couplecouple (something) togetherTo connect or fasten two things together. We still need to couple the trailer and the truck together before we can leave.See also: couple, togethercouple upTo form a pair with someone else. The phrase is often but not always used to describe romantic relationships. When the teacher told us that we could work with a classmate on the assignment, I immediately coupled up with my best friend. I feel lonely because all of my friends are coupled up and dating right now.See also: couple, upcouple with1. To connect or fasten two things together. A noun or pronoun can be used between "couple" and "with." We still need to couple the trailer with the truck before we can leave.2. To form a pair with someone else. A noun or pronoun can be used between "couple" and "with." When the teacher told us that we could work with a classmate on the assignment, I immediately coupled with my best friend.3. euphemism To have sex with someone. A noun or pronoun can be used between "couple" and "with." My roommate hasn't been home any night this week—I wonder who he's coupling with.See also: couplecouple someone with someoneto join one person with another to make a pair. I coupled Todd with Amy for the dinner party.See also: couplecouple something with somethingto join one thing with another to make a pair. We coupled the budget issue with the staffing issue for our agenda.See also: couplecouple up (with someone)[for one person] to join another person to form a pair. I decided to couple up with Larry. Larry and I coupled up with each other. By midnight, they all had coupled up and were dancing.See also: couple, upcouple with someoneEuph. to have sexual intercourse with someone. They coupled with each other in a night of passion.See also: couplecouple with somethingto connect or join to something. This railroad car will couple with the engine. These cars did not couple with the others properly, and there was almost an accident.See also: couplecoupling
coupling1. a mechanical device that connects two things 2. a device for connecting railway cars or trucks together 3. the part of the body of a horse, dog, or other quadruped that lies between the forequarters and the hindquarters 4. Electronics the act or process of linking two or more circuits so that power can be transferred between them usually by mutual induction, as in a transformer, or by means of a capacitor or inductor common to both circuits 5. Physics an interaction between different properties of a system, such as a group of atoms or nuclei, or between two or more systems 6. Genetics the occurrence of two specified nonallelic genes from the same parent on the same chromosome Coupling (for clutch), a device for permanent or temporary joining of shafts, pipes, and steel-wire ropes and cables. In terms of function, a distinction is made between joint couplings, which provide both strength and airtightness of a connection and protection from corrosion, and drive couplings for machines, which transmit rotary motion and torque from one shaft to another (which is usually coaxial with the first) or from a shaft to a part that fits freely on it (a pulley or gear) without changing the torque. In addition, drive couplings perform other important functions, such as compensation for small assembly errors, disengagement of shafts, automatic control, stepless variation of a transmission ratio, and protection of machines from damage under emergency conditions. Couplings are used to transmit both very small and substantial torques and powers (up to several thousand kilowatts). The variety of methods for transmitting torque and the diversity of the functions performed by couplings have resulted in many types of designs for modern couplings. The most common types have been standardized. Torque can be transmitted in a coupling by a mechanical link between the parts, which may be provided by fixed joints or kinematic pairs (couplings with geometric locking), by frictional forces or magnetic attraction (couplings with force locking), or by inertial forces or inductive interaction of electromagnetic fields (couplings with dynamic locking). Couplings are divided into the following types on the basis of their purpose and type of operation: permanent couplings; controlled couplings, which make possible engagement and disengagement of shafts by means of a control system; automatic couplings, which engage and disengage shafts automatically during operation according to changes in the operating conditions; safety clutches, which disengage shafts upon serious disruption of the normal operating conditions of a machine; and slip couplings, which transmit torque only when the rate of rotation of the driven shaft is less than that of the driving shaft. Permanent couplings. Permanent couplings have geometric locking and are made in several types. Jointed, or fixed, couplings (Figure l,a) engage shafts without providing for their relative displacement. Jointed couplings allow small deviations of the shafts from coaxiality. The most common couplings of this type are toothed couplings (Figure 1,b). Rigid movable couplings permit considerable departure from coaxiality. For example, asynchronous articulated couplings that permit axial misalignments up to 45° but not transverse or longitudinal displacements of the axes (Cardan mechanisms) are widely used; also popular are double Cardan mechanisms—that is, combinations of two single Cardan mechanisms (Figure l,c). Synchronous articulated couplings, which transmit the motion by means of ball-and-socket joints, provide a constant gear ratio at any angle between the axes of the connected shafts. Such couplings are used in motor vehicles with front-wheel drive. Synchronous couplings also include the full-floating, or cross-sliding, couplings (Figure l,d), which are designed to permit some transverse displacements of the shafts and to compensate for small angular deflections and axial displacements. Elastic and elastic-damping  Figure 1. Permanent couplings: (a) rigid sleeve coupling, (b) jointed toothed coupling, (c) combination of two Cardan mechanisms with an intermediate shaft, (d) full-floating claw-disk coupling, (e) boxpin coupling, (f) coupling with toroidal jacket; (1) shafts being connected, (2) coupling sleeve, (3) sleeves with external teeth, (4) housing with internal teeth, (5) coupling halves, (6) intermediate shaft, (7) intermediate disk, (8) toroidal elastic jacket; (Δ) transverse displacements of shafts, (δ) angular displacement, (δ1) and (δ2,) shaft angles of the Cardan mechanisms
 Figure 2. Controlled couplings: (a) dog clutch, (b) toothed clutch with synchronizer, (c) friction coupling with electromagnetic control, (d) friction coupling with a ferromagnetic mixture, (e) synchronized electroinduction coupling; (1) coupling halves, (2) external teeth, (3) conical friction surfaces, (4) movable ring with internal teeth, (5) disks of coupling halves, (6) ferromagnetic mixture, (7) excitation coil, (8) and (9) magnetic cores of coupling halves, with split poles
couplings are also used as sliding couplings. This group includes box-pin couplings (Figure l,e), which are used extensively to connect the shafts of electric motors to the shafts of driven machines, and also the more modern design of coupling with a toroidal jacket (Figure 1,f) Controlled couplings. Controlled couplings, or clutches, which have geometric or force locking, are also distinguished by their great variety. The group of couplings with geometric locking includes the dog clutches (Figure 2,a) and toothed clutches, which are noted for their compactness of design but cannot be engaged during high-speed operation if the difference between the angular velocities of the meshing halves is great. This disadvantage is eliminated in toothed couplings with synchronizers (Figure 2,b) that ensure shockless engagement when idling, since the friction surfaces are the first to come into contact, equalizing the rotational velocities of the clutch halves through slippage before the teeth are meshed. This type of clutch is used in motor-vehicle transmissions. Controlled couplings with mechanical connection by means of force locking include friction couplings, which can engage during operation and under load. They are made with one or more disks, with cylindrical or conical friction surfaces, and with mechanical, pneumatic, hydraulic, or electromagnetic control (Figure 2,c). This type of coupling is used in automatic systems since it can be remotely controlled. A group of couplings with force locking by electromagnetic coupling is formed by clutches with a fluid or powdered ferromagnetic mixture (Figure 2,d) in which a magnetic flux is produced when an electric current passes through an excitation coil. As a result, the ferromagnetic mixture that fills the gap between the halves of the coupling becomes magnetized and adheres to the surfaces of the halves. Such couplings are used extensively in copying lathes and other processing machinery. Force locking with electromagnetic coupling is achieved in synchronized electroinduction clutches, which have magnetic cores with split poles on both halves (Figure 2,e). Torque is transmitted between the shafts when a current passes through the excitation coil, as a result of which a magnetic attractive force is developed between the poles of the clutch halves. Automatic couplings. Automatic couplings engage and disengage according to changes in the operating conditions of a machine. They include (1) single-revolution couplings, which  Figure 3. Automatic couplings: (a) freewheeling clutch, (b) centrifugal clutch; (1) drive sprocket, (2) rollers, (3) driven band, (4) housing, (5) friction lining
operate in a certain position for one revolution or several revolutions of the shaft (they are used in presses and hammers to stop the slider in the top position); (2) freewheeling clutches (Figure 3,a), which transmit torque only for one direction of rotation of the driving half of the clutch relative to the driven half and disengage when the direction of rotation is reversed (they are used in bicycles and in automatic transmissions for motor vehicles and machine tools); (3) centrifugal clutches (Figure 3,b), which engage and disengage according to the speed of rotation of the driving half (they are used as starter clutches in drives and also as safety clutches to limit the speed of rotation of a driven machine); and (4) torque-limiting couplings, which are used most often as safety clutches to disengage a machine upon a dangerous increase in torque. The safety function is also performed by other types of couplings that permit slippage and have design features suitable for the purpose. Sliding couplings. Sliding couplings have dynamic locking by means of a mechanical link (hydrodynamic couplings) or an electrical link (electroinduction asynchronous couplings). Such couplings transmit torque only when the driven half lags behind the driving half of the coupling—that is, when there is slippage. The hydrodynamic type has a locking system with a fluid working medium. Such couplings are used as starting, control, and safety couplings in hydrodynamic transmissions. Electroinduction asynchronous couplings are operated by the forces of magnetic interaction that arise when slippage occurs between the driving half of the coupling, which has an excitation coil and a magnetic core with split poles, and the driven half, which has a solid magnetic core. Such couplings are used for control and starting functions and, sometimes, as speed regulators. REFERENCESReshetov, D. N. Detail mashin, 3rd ed. Moscow, 1974.
Kratkii spravochnik mashinostroitelia. Moscow, 1966.
Detali mashin, 7th ed. Moscow, 1972.
Poliakov, V. S. , and I. D. Barbash. Mufty, 4th ed. Leningrad, 1973.
Detali mashin: Spravochnik, vol. 1, 3rd ed. Edited by N. S. Acherkan. Moscow, 1968.N. IA. NIBERG coupling[′kəp·liŋ] (electricity) A mutual relation between two circuits that permits energy transfer from one to another, through a wire, resistor, transformer, capacitor, or other device. A hardware device used to make a temporary connection between two wires. (engineering) Any device that serves to connect the ends of adjacent parts, as railroad cars. A metal collar with internal threads used to connect two sections of threaded pipe. (mechanical engineering) The mechanical fastening that connects shafts together for power transmission. Also known as shaft coupling. coupling  coupling A short internally threaded section of pipe, used to join two pipes or conduits.coupling (programming, hardware)The degree to which components dependon one another. There are two types of coupling, "tight" and"loose". Loose coupling is desirable for good software engineering but tight coupling may be necessary for maximumperformance. Coupling is increased when the data exchangedbetween components becomes larger or more complex.coupling
coupling [kup´ling] in electrocardiography, precise linkage of an ectopic complex to the preceding beat each time it occurs.cou·pling (kŭp'ling), 1. The result of the repeated pairing of a normal sinus beat with a ventricular extrasystole. 2. 3. A condition in which one or more products of a reaction are the subsequent reactants (or substrates) of a second reaction. 4. The covalent bonding of one molecular entity to another. 5. An interaction between different parts of a system, for example, between groups in a molecule. 6. The linking of electron trnasport to oxidative phosphorylation. coupling (kŭp′lĭng)n. The body part of a four-footed animal that connects the hindquarters to the forequarters.cou·pling (kŭp'ling) 1. The repeated pairing of a normal sinus beat with a ventricular extrasystole. 2. A condition in which one or more products of a reaction are the subsequent reactants (or substrates) of a second reaction.  Fig. 122 Coupling . The arrangement of genes in coupling. coupling an arrangement in a double HETEROZYGOTE where WILD TYPE alleles of two genes are located on one chromosome with MUTANT alleles of these two genes on the other HOMOLOGOUS CHROMOSOME. Such an arrangement of linked genes is usually referred to as in coupling (see Fig. 122 ). Such arrangements are important when considering the implications of GENETIC LINKAGE. Compare REPULSION.Patient discussion about couplingQ. help program for infertil couple MY NAME IS ALEX AND I'M 44 YEARDS OLD AND MY WIFE IS NILDA AND SHE IS 41 YEARS OLDA. Your infertility treatment plan will depend on the cause or causes behind your infertility. Infertility treatment also depends on whether the problem is from the woman’s side, the man’s side, both sides, or remains unexplained.The good news is that 85% to 90% of couples dealing with infertility are treated with low-tech treatments, like medication or surgery, with less than 3% being treated by Assisted Reproductive Technologies, like IVF. Of those treated for infertility, two-thirds will go onto have a baby. A common cause of infertility in women, ovulation disorders account for about 25% of female factor infertility cases. The first line of treatment for most women with ovulation problems is through medication. Fertility drugs can help a woman ovulate 80% of the time. For the full article: http://infertility.about.com/od/infertilitytreatments/a/basictreatments.htm Hope this helps.
Q. what are the must test that a couple need to go through during pregnancy? A. It depends on many things, including age, ethnicity (e.g. genetic counseling for Ashkenazi Jews), geographical areas, habits etc.
General screening include laboratory tests for blood type (including Rh type), hemoglobin levels, rubella immunity, syphilis, hepatitis B and chlamydia testing (infectious agents that may cause malformations in the fetus),
Ultrasound screening, although not proven to reduce the overall outcome, is usually offered during the first trimester in order to diagnose abnormalities of the fetus. Down syndrome screening is also usually offered to all pregnant women, although the risk is substantially higher mainly in older ages of the mother.
There are many more tests, and you may consult your doctor (e.g. gynecologist) to learn more about this subject.
You may read more here:
http://www.nlm.nih.gov/medlineplus/ency/article/003778.htm
Q. What are the steps we as a couple go through during pregnancy? any one experienced that?? :)how does it feel A. Dunno about steps, it just naturally progresses. You have decisions to make about nutritionals that you will take, where you want to birth your baby, if you want to experience an amazing natural drug free birth, or the other, if you want an epesiotomy, or not, who you want to be there, and if you will circumcise if you have a boy, amongst many others. My eldest daughter assumed everything would go well and didn't do her research and ended up having a c-section. She then made up for lost time, and told her sister to go for unassisted childbirth. I was able to support her because of my experience with goats and the difference nutritionals and minerals made in how successful the goats were in kidding. Not only successful, but a totally amazing experience! Even brought healing to me for the trauma I experienced birthing my own 4 babies. The pic is of the uc grandbaby. I highly recommend uc. More discussions about couplingAcronymsSeeCPLGcoupling
Related to coupling: Coupling capacitorSynonyms for couplingnoun a point or position at which two or more things are joinedSynonyms- connection
- joint
- junction
- juncture
- seam
- union
Synonyms for couplingnoun a connection (like a clamp or vise) between two things so they move togetherSynonymsRelated Words- connecter
- connector
- connective
- connection
- connexion
noun a mechanical device that serves to connect the ends of adjacent objectsSynonymsRelated Words- clevis
- clutch
- fluid drive
- mechanical device
- swivel
- turnbuckle
- universal joint
- universal
noun the act of pairing a male and female for reproductive purposesSynonyms- mating
- pairing
- sexual union
- union
- conjugation
Related Words- sex
- sex activity
- sexual activity
- sexual practice
- assortative mating
- disassortative mating
- hybridisation
- hybridization
- hybridizing
- interbreeding
- crossbreeding
- crossing
- cross
- inbreeding
- servicing
- service
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