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单词 variable gear
释义

gear /gēr/

noun
  1. Equipment
  2. Accoutrements
  3. Tackle
  4. Clothes, esp (informal) young people's fashion clothes
  5. Personal belongings (informal)
  6. Illicit drugs (slang)
  7. Armour (obsolete)
  8. A harness
  9. An apparatus
  10. A set of tools or a mechanism for some particular purpose
  11. Household stuff
  12. Stuff, matter (archaic)
  13. An affair, business, doings (often contemptuous) (obsolete)
  14. Any moving part or system of parts for transmitting motion, eg levers, gearwheels
  15. Connection by means of such parts
  16. The actual gear ratio in use, or the gearwheels involved in transmitting that ratio, in an automobile gearbox, first gear being the lowest
  17. Landing gear
  18. Working connection
  19. Working order
  20. The diameter in inches of a wheel whose circumference equals the distance a bicycle would go for one turn of the pedals
transitive verb
  1. To harness
  2. To put (eg machinery) in gear
  3. To connect in gear
  4. To adjust in accordance with the requirements of a particular plan, etc (with to)
intransitive verb
  1. To be in gear
  2. To have a (high or low) gearing (economics)
adjective (old slang)

Unusually good, or (later) very up to date

ORIGIN: ME gere, prob ON gervi; cf OE gearwe, OHGer garawi; yare, gar2

geared adjective

gearˈing noun

  1. Harness
  2. Working implements
  3. Means of transmission of motion, esp a series of toothed wheels and pinions
  4. (in a company's capital) the proportion of debt finance to equity finance (economics)

gearˈless adjective

gearˈbox noun

  1. The box containing the apparatus for changing gear
  2. (in a motor vehicle) the apparatus itself

gearˈ-case noun

A protective case for the gearing of a bicycle, etc

gearˈ-change or gearˈchange noun

  1. A change of gear
  2. The mechanism with which one changes gear

gear-lever, gearˈ-stick or (N American) gearˈshift noun

A device for selecting or engaging and disengaging gears

gear ratio noun

The ratio of the driving to the driven members of a gear mechanism

gear train noun

Two or more gearwheels, transmitting motion from one shaft to another

gearˈwheel noun

A wheel with teeth or cogs which impart or transmit motion by acting on a similar wheel or a chain

change gear

To select a higher or lower gear

gear down

  1. To make the speed of the driven part lower than that of the driving part
  2. To prepare for decreased production, fewer demands, etc

gear up

  1. To make the speed of the driven part higher than that of the driving part
  2. To prepare for increased production, new demands, etc
  3. To raise the gearing of (a company)

high gear

  1. A gear ratio giving a high number of revolutions of the driven part relative to the driving part (highˈ-gear adjective)
  2. Maximum speed and efficiency, peak performance (figurative)

highly geared

(of a company or its capital) having a high ratio of borrowing in relation to owners' capital, or of debt to equity

low gear

A gear ratio giving a low number of revolutions of the driven part relative to the driving part (lowˈ-gear adjective)

multiplying gearing

A combination of cogwheels for imparting motion from wheels of larger to wheels of smaller diameter, by which the rate of revolution is increased

straight gear

The name given to a set of geared wheels when the planes of motion are parallel (cf bevel gear under bevel)

three-speed gear, two-speed gear and variable gear

  1. A contrivance for changing gear at will
  2. See also synchromesh

variable /vāˈri-ə-bl or -ryə-bl/

adjective
  1. That may be varied
  2. Changeable
  3. Tending or liable to change or vary
  4. Showing variations
  5. Unsteady
  6. Quantitatively indeterminate (mathematics)
  7. Changing in brightness (astronomy)
noun
  1. A quantity subject to continual increase or decrease (mathematics)
  2. An expression which may have any of a number of values (mathematics, computing)
  3. A symbol referring to a known semantic range, but unspecified as to exact meaning (logic)
  4. A shifting wind
  5. A variable star

variabilˈity noun

vāˈriableness noun

vāˈriably adverb

variable costs plural noun

Costs which, unlike fixed costs, vary with the level of production

variable gear see under gear

variable-geometry aeroplane noun

An aeroplane of varying wing, swept-back for flight, but at right angles for take-off and landing, so removing the need for long runways and high landing-speeds

variable interest rate noun

A rate of interest on a loan, etc, that varies with the market rate of interest

variable-pitch propeller noun (aeronautics)

A propeller with blades movable by mechanical means during rotation to optimize the pitch for different speeds and engine revs

variable region noun (immunology)

Part of an immunoglobulin molecule which differs in amino acid sequence between different molecules

variable star noun

Any star with a luminosity not constant with time

vaˈriable-sweepˈ adjective

(of an aircraft wing) of which the sweep-back may be varied, as on a variable-geometry aeroplane
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更新时间：2025/3/24 9:28:13