| 单词 | relay |
| 释义 | relay relay1 n. /ree"lay/; v. /ree"lay, ri lay"/, n. , v. , relayed, relaying. 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. Sports. a. See relay race. b. a length or leg in a relay race. 4. 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. 5. Elect. a 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. 6. (cap.) U.S. Aerospace. one of an early series of experimental low-altitude, active communications satellites. v.t. 7. to carry forward by or as if by relays: to relay a message. 8. to provide with or replace by fresh relays. 9. Elect. to retransmit (a signal, message, etc.) by or as if by means of a telegraphic relay. v.i. 10. Elect. to retransmit a signal or message electronically. [1375-1425; (v.) late ME relaien to unleash fresh hounds in a hunt < MF relaier, OF: to leave behind, RELEASE, equiv. to re- RE- + laier to leave, dial. var. of laissier < L laxare (see RELAX); (n.) late ME relai set of fresh hounds < MF, deriv. of relaier] relay2 /ree lay"/, v.t., relaid, relaying. re-lay. |
| 随便看 |
英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。