| 释义 |
relay
re·lay R0138400 (rē′lā)n.1. An act of passing something along from one person, group, or station to another.2. Sports a. A relay race.b. A division of a relay race.3. Electronics A device that responds to a small current or voltage change by activating switches or other devices in an electric circuit.4. A crew of workers who relieve another crew; a shift.5. A fresh team, as of horses or dogs, to relieve weary animals in a hunt, task, or journey.tr.v. (rē′lā, rĭ-lā′) re·layed, re·lay·ing, re·lays 1. To pass along by or as if by relay: relayed the message to his boss.2. To supply with fresh relays.3. Electronics To control or retransmit by means of a relay.
[Middle English relai, fresh team of dogs for a hunt, from Old French, from relaier, to relay : re-, re- + laier, to leave (of Germanic origin; see leip- in Indo-European roots).]relay n 1. a person or team of people relieving others, as on a shift 2. a fresh team of horses, dogs, etc, posted at intervals along a route to relieve others 3. the act of relaying or process of being relayed 4. (General Sporting Terms) a. short for relay raceb. one of the sections of a relay race 5. (Mechanical Engineering) an automatic device that controls the setting of a valve, switch, etc, by means of an electric motor, solenoid, or pneumatic mechanism 6. (Electronics) electronics an electrical device in which a small change in current or voltage controls the switching on or off of circuits or other devices 7. (Telecommunications) radio a. a combination of a receiver and transmitter designed to receive radio signals and retransmit them, in order to extend their rangeb. (as modifier): a relay station. vb (tr) 8. to carry or spread (something, such as news or information) by relays9. to supply or replace with relays10. (Telecommunications) to retransmit (a signal) by means of a relay11. (Broadcasting) Brit to broadcast (a performance) by sending out signals through a transmitting station: this concert is being relayed from the Albert Hall. [C15 relaien, from Old French relaier to leave behind, from re- + laier to leave, ultimately from Latin laxāre to loosen; see relax]re-lay or re•lay (riˈleɪ)
v.t. -laid, -lay•ing. to lay again. [1580–90] re•lay (ˈri leɪ; v. also rɪˈleɪ)
n. 1. a series of persons relieving one another or taking turns; shift. 2. a fresh set of dogs or horses posted in readiness for use in a hunt, on a journey, etc. 3. a. relay race. b. a length or leg in a relay race. 4. a. an electrical device that responds to a change of current or voltage in one circuit by making or breaking a connection in another. b. servomechanism. 5. an act or instance of conveying or transmitting by relay. v.t. 6. to carry or convey by or as if by relays: to relay a message. 7. to provide with or replace by fresh relays. 8. to retransmit (a signal, message, etc.) by or as if by means of an electrical relay. [1375–1425; (v.) late Middle English relaien to unleash fresh hounds in a hunt < Middle French relaier, Old French: to leave behind, release=re- re- + laier to leave, dial. variant of laissier < Latin laxāre (see relax)] re·lay (rē′lā) An electrical switch that is operated by an electromagnet, such as a solenoid. When a small current passes through the electromagnet's coiled wire, it causes a movable iron bar to pivot and open or close the switch.relay
Past participle: relayed
Gerund: relaying
| Present |
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| I relay | | you relay | | he/she/it relays | | we relay | | you relay | | they relay |
| Preterite |
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| I relayed | | you relayed | | he/she/it relayed | | we relayed | | you relayed | | they relayed |
| Present Continuous |
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| I am relaying | | you are relaying | | he/she/it is relaying | | we are relaying | | you are relaying | | they are relaying |
| Present Perfect |
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| I have relayed | | you have relayed | | he/she/it has relayed | | we have relayed | | you have relayed | | they have relayed |
| Past Continuous |
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| I was relaying | | you were relaying | | he/she/it was relaying | | we were relaying | | you were relaying | | they were relaying |
| Past Perfect |
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| I had relayed | | you had relayed | | he/she/it had relayed | | we had relayed | | you had relayed | | they had relayed |
| Future |
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| I will relay | | you will relay | | he/she/it will relay | | we will relay | | you will relay | | they will relay |
| Future Perfect |
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| I will have relayed | | you will have relayed | | he/she/it will have relayed | | we will have relayed | | you will have relayed | | they will have relayed |
| Future Continuous |
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| I will be relaying | | you will be relaying | | he/she/it will be relaying | | we will be relaying | | you will be relaying | | they will be relaying |
| Present Perfect Continuous |
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| I have been relaying | | you have been relaying | | he/she/it has been relaying | | we have been relaying | | you have been relaying | | they have been relaying |
| Future Perfect Continuous |
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| I will have been relaying | | you will have been relaying | | he/she/it will have been relaying | | we will have been relaying | | you will have been relaying | | they will have been relaying |
| Past Perfect Continuous |
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| I had been relaying | | you had been relaying | | he/she/it had been relaying | | we had been relaying | | you had been relaying | | they had been relaying |
| Conditional |
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| I would relay | | you would relay | | he/she/it would relay | | we would relay | | you would relay | | they would relay |
| Past Conditional |
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| I would have relayed | | you would have relayed | | he/she/it would have relayed | | we would have relayed | | you would have relayed | | they would have relayed |
Thesaurus| Noun | 1. |  relay - the act of passing something along from one person or group to another; "the relay was successful"handing over, passage - the act of passing something to another person | | 2. | relay - a crew of workers who relieve another crewshift - a crew of workers who work for a specific period of time | | 3. | relay - a fresh team to relieve weary draft animalsteam - two or more draft animals that work together to pull something | | 4. |  relay - a race between teams; each member runs or swims part of the distancerelay racerace - a contest of speed; "the race is to the swift"torch race - (ancient Greece) in which a torch is passed from one runner to the next | | 5. | relay - electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuitelectrical relaycircuit, electric circuit, electrical circuit - an electrical device that provides a path for electrical current to flowelectrical device - a device that produces or is powered by electricityelectromagnet - a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet | | Verb | 1. | relay - pass along; "Please relay the news to the villagers"communicate, pass along, put across, pass on, pass - transmit information ; "Please communicate this message to all employees"; "pass along the good news" | | 2. | relay - control or operate by relaycontrol, operate - handle and cause to function; "do not operate machinery after imbibing alcohol"; "control the lever" |
relayverb1. broadcast, carry, spread, communicate, transmit, send out It will be used mainly to relay television programmes.2. repeat, transfer, communicate, hand on, pass on, impart She relayed the message, then frowned.noun1. broadcast, programme, communication, transmission, dispatch, telecast, webcast More than a thousand people listened to a relay of the proceedings.Translationsrelay (riˈlei) – past tense, past participle reˈlayed – verb to receive and pass on (news, a message, a television programme etc). 轉達(消息)，轉播(電視節目) 转播（消息、电视节目等），中继转播 noun (ˈriːlei) (the sending out of) a radio, television etc signal or programme which has been received (from another place). 轉播 转播relay race a race between teams of runners, swimmers etc, in which the members of the team run, swim etc one after another, each covering one part of the total distance to be run, swum etc. 接力賽 接力赛in relays in groups which perform some job, task etc one after another, one group starting when another group stops. During the flood, firemen and policemen worked in relays to rescue people who were trapped. (小組)輪流 轮班（工作）
relay
relay (something) to (one)To deliver, pass along, or communicate a message to one with or as is with the use of relays. Will you relay a message to the county courthouse for me? We need to relay the new instructions to the crew in the field.See also: relayrelay something to someoneto pass something on to someone. Can you relay this to Frank, who is way down the line? The message was relayed to Frank, who was at the end of the line.See also: relayrelay
relay, electromechanical switchswitch,
electrical device having two states: on, or closed; and off, or open. Ideally a switch offers a zero impedance to a current when it is closed, and it offers infinite impedance when open.
..... Click the link for more information. operated by a flow of electricity in one circuit and controlling the flow of electricity in another circuit. A relay consists basically of an electromagnet with a soft iron bar, called an armature, held close to it. A movable contact is connected to the armature in such a way that the contact is held in its normal position by a spring. When the electromagnet is energized, it exerts a force on the armature that overcomes the pull of the spring and moves the contact so as to either complete or break a circuit. When the electromagnet is de-energized, the contact returns to its original position. Variations on this mechanism are possible: some relays have multiple contacts; some are encapsulated; some have built-in circuits that delay contact closure after actuation; some, as in early telephone circuits, advance through a series of positions step by step as they are energized and de-energized.Relay a device containing a relay element and used to cause a sudden change in conditions in an electric circuit as a result of specified inputs. The number of working states of the controlled circuit is usually limited to two or, less often, three. The term “relay” is also frequently applied to relay-action devices that effect a change in conditions in, for example, pneumatic or hydraulic systems. Sometimes a single relay element is called a relay. Historically, the term “relay” was applied first to electromagnetic relays. Electrical telegraph signals were attenuated in long transmission lines, and such relays were used in amplifying the signals to levels adequate for the operation of telegraph equipment. Relays can be classified according to the field of technology in which they find application; we speak, for example, of telegraph, telephone, and aircraft relays. Relays are also classified according to the physical nature of the external phenomena that cause them to operate. Examples are (1) electrical relays, which include such subtypes as current, voltage, power, impedance, and frequency relays, (2) mechanical relays, such as displacement, speed, acceleration, pressure, and level relays, and (3) thermal, optical, acoustical, chemical, and magnetic relays. With respect to the functions performed, there are protective, monitoring, control, and signaling relays, among others. The name of a relay often conveys information about the characteristics of its main elements; examples are electromagnetic, mag-netoelectric, electrothermal, contact, contactless, bimetallic strip, and solenoid relays. Alternatively, the name of the relay, as in hermetically sealed and nonhermetically sealed relays, may convey information about the design of the relay as a whole. A relay may simultaneously controlseveral independent electric circuits. Contacts were long the only actuating elements used in relays. Since the 1950’s relay designs have also made use of magnetically saturated elements (magnetic amplifiers) and semiconductor devices (transistors, thyristors), which do not require mechanical displacements to control electric circuits.  Figure 1. Electromagnetic relay: (1) core, (2) coil, (3) heelpiece, (4) armature, (5) contacts, (6) restoring spring
In the mid-1970’s electromagnetic relays were still the most widely used type. Figure 1 shows a simple electromagnetic relay. It operates as a result of the interaction of a ferromagnetic armature with the magnetic field of the coil, through which a current flows. When a certain current strength is reached in the relay coil, the armature is attracted to the core, thereby closing the contacts in the controlled circuit. Time-delay relays constitute a special group. They provide a time lag in relay equipment during the transmission of external actions outside or inside the equipment. REFERENCESotskov, B. S. Osnovy rascheta i proektirovaniia elektromekhanicheskikh elementov avtomaticheskikh i telemekhanicheskikh ustroistv. Moscow-Leningrad, 1965.I. E. DEKABRUN and B. I. FILIPOVICH
Relay a team competition in distance racing in which each team member covers part of the total distance. Each member of the team, after completing his own distance, passes a baton to the next, although in some races this is done only symbolically. The two types of relays are medley and non-medley. In non-medley relays, all parts of the total distance are completed in the same manner, for example, as a footrace. Medley relays may involve a single sport, for example, swimming in varied strokes, or several sports, for example, rowing and motorcycling. The program of the modern Olympic Games includes relays in track and field, swimming, skiing, and biathlon. In track and field, men’s and women’s relays cover four distances of 100 m or 400 m each. In swimming, freestyle relays cover four distances of 100 m each for women and 200 m for men; medley relays, with four distances of 100 m each for both men and women, include alternating distances of backstroke, breaststroke, butterfly, and freestyle. Skiing relays have four distances of 5 km for women and 10 km for men. Relays in biathlon have four distances of 7.5 km. The Olympic torch is carried to the city hosting the games in accordance with the principle of a medley relay. In the first half of the 20th century, relays were widely held to encourage sociopolitical and cultural ties, for example, peace, friendship, and all-star relays. relay[′rē‚lā] (communications) A microwave or other radio system used for passing a signal from one radio communication link to another. (electricity) A device that is operated by a variation in the conditions in one electric circuit and serves to make or break one or more connections in the same or another electric circuit. Also known as electric relay. Relay An electromechanical or solid-state device operated by variations in the input which, in turn, operate or control other devices connected to the output. They are used in a wide variety of applications throughout industry, such as in telephone exchanges, digital computers, motor and sequencing controls, and automation systems. Highly sophisticated relays are utilized to protect electric power systems against trouble and power blackouts as well as to regulate and control the generation and distribution of power. In the home, relays are used in refrigerators, automatic washers and dishwashers, and heat and air-conditioning controls. Although relays are generally associated with electrical circuitry, there are many other types, such as pneumatic and hydraulic. Input may be electrical and output directly mechanical, or vice-versa. Relays using discrete solid-state components, operational amplifiers, or microprocessors can provide more sophisticated designs. Their use is increasing, particularly in applications where the relay and associated equipment are packaged together. See Amplifier relayAn electromechanical device in which changes in the current flow in one circuit (that flows through the device) are used to open or close electric contacts in a second circuit.relay1. an automatic device that controls the setting of a valve, switch, etc., by means of an electric motor, solenoid, or pneumatic mechanism 2. Electronics an electrical device in which a small change in current or voltage controls the switching on or off of circuits or other devices relayAn electrical switch that allows a low power to control a higher one. A small current energizes the relay, which closes a gate, allowing a large current to flow through.
In the radio world, a relay is a device that receives a signal from a low-power or distant transmitter and retransmits it on the same or different frequency in order to increase the coverage area. For example, the signal from a broadcast facility in a valley would only propagate within that valley. A relay site at the top of a nearby mountain would rebroadcast the original signal to a wider audience. In commercial TV and radio, these relay sites are known as "translators."See RLY
See RLYrelay
Related to relay: circuit breaker, electrical relaySynonyms for relayverb broadcastSynonyms- broadcast
- carry
- spread
- communicate
- transmit
- send out
verb repeatSynonyms- repeat
- transfer
- communicate
- hand on
- pass on
- impart
noun broadcastSynonyms- broadcast
- programme
- communication
- transmission
- dispatch
- telecast
- webcast
Synonyms for relaynoun the act of passing something along from one person or group to anotherRelated Wordsnoun a crew of workers who relieve another crewRelated Wordsnoun a fresh team to relieve weary draft animalsRelated Wordsnoun a race between teamsSynonymsRelated Wordsnoun electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuitSynonymsRelated Words- circuit
- electric circuit
- electrical circuit
- electrical device
- electromagnet
verb pass alongRelated Words- communicate
- pass along
- put across
- pass on
- pass
verb control or operate by relayRelated Words |