| 单词 | radio |
| 释义 | radio n. & v. --n (pl. -os) 1. (often attrib.) a the transmission and reception of sound messages etc. by electromagnetic waves of radio-frequency (cf. WIRELESS). b an apparatus for receiving, broadcasting, or transmitting radio signals. c a message sent or received by radio. 2. a sound broadcasting in general (prefers the radio). b a broadcasting station or channel (Radio One). --v (-oes, -oed) 1. tr. a send (a message) by radio. b send a message to (a person) by radio. 2. intr. communicate or broadcast by radio. Phrases and idioms radio astronomy the branch of astronomy concerned with the radio-frequency range of the electromagnetic spectrum. radio cab (or car) a cab or car equipped with a two-way radio. radio fix the position of an aircraft, ship, etc., found by radio. radio galaxy a galaxy emitting radiation in the radio-frequency range of the electromagnetic spectrum. radio ham see HAM. radio star a small star etc. emitting strong radio waves. radio telescope a directional aerial system for collecting and analysing radiation in the radio-frequency range from stars etc. Etymology: short for radio-telegraphy etc. |
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