| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024re•lay1 /ˈrileɪ; v. also rɪˈleɪ/USA pronunciation n., pl. -lays, v., -layed, -lay•ing —n. [countable]- a series of persons who take turns helping one another;
a shift:We worked in relays. - Sporta race in which each member of a team runs part way.
- Electricity, Mechanical Engineering
- , Electricityan electrical device that responds to a change of current or voltage in one circuit by making or breaking a connection in another.
v. [~ + object] - to carry or send by or as if by relays:relaying a message.
Collins Concise English Dictionary © HarperCollins Publishers:: relay n /ˈriːleɪ/- a person or team of people relieving others, as on a shift
- a fresh team of horses, dogs, etc, posted at intervals along a route to relieve others
- the act of relaying or process of being relayed
- short for relay race
- an automatic device that controls the setting of a valve, switch, etc, by means of an electric motor, solenoid, or pneumatic mechanism
- an electrical device in which a small change in current or voltage controls the switching on or off of circuits or other devices
- a combination of a receiver and transmitter designed to receive radio signals and retransmit them, in order to extend their range
- (as modifier): a relay station
vb /rɪˈleɪ/(transitive)- to carry or spread (something, such as news or information) by relays
- to supply or replace with relays
- to retransmit (a signal) by means of a relay
- Brit to broadcast (a performance) by sending out signals through a transmitting station
Etymology: 15th Century relaien, from Old French relaier to leave behind, from re- + laier to leave, ultimately from Latin laxāre to loosen; see relax re-lay (rē lā′),USA pronunciation v.t., -laid, -lay•ing. - to lay again.
Also, relay. re•lay1 (n. rē′lā;v. rē′lā, ri lā′),USA pronunciation n., v., -layed, -lay•ing. n. - a series of persons relieving one another or taking turns;
shift. - a fresh set of dogs or horses posted in readiness for use in a hunt, on a journey, etc.
- Sport
- See relay race.
- a length or leg in a relay race.
- Mechanical Engineering[Mach.]an automatic control device in which the settings of valves, switches, etc., are regulated by a powered element, as a motor, solenoid, or pneumatic mechanism actuated by a smaller, sensitive element.
- Electricitya device, usually consisting of an electromagnet and an armature, by which a change of current or voltage in one circuit is used to make or break a connection in another circuit or to affect the operation of other devices in the same or another circuit.
- Aerospace(cap.) [U.S. Aerospace.]one of an early series of experimental low-altitude, active communications satellites.
v.t. - to carry forward by or as if by relays:to relay a message.
- to provide with or replace by fresh relays.
- Electricity, Telecommunicationsto retransmit (a signal, message, etc.) by or as if by means of a telegraphic relay.
v.i. - Telecommunications, Electricity[Elect.]to retransmit a signal or message electronically.
- Middle French, derivative of relaier
- Latin laxāre (see relax); (noun, nominal) late Middle English relai set of fresh hounds
- Middle French relaier, Old French: to leave behind, release, equivalent. to re- re- + laier to leave, dialect, dialectal variant of laissier
- (verb, verbal) late Middle English relaien to unleash fresh hounds in a hunt 1375–1425
- re-lay.
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