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n (1)無線電通訊(system of sending or receiving sounds over a distance by means of electrical waves)[U]：contact the plane/send messages to each other by～通過無線電與飛機(jī)聯(lián)系/相互傳遞消息;～waves/communication/frequency/telephone 無線電電波/通訊/頻率/電話;a～receiver/transmitter/car/telescope 無線電接收機(jī)/發(fā)報(bào)機(jī)/通訊車/望遠(yuǎn)鏡;～astronomy 射電天文學(xué);

(2)無線電收(發(fā))報(bào)機(jī)(piece of equipment used for sending or receiving messages by radio)[C](=radio set)：They sent urgent messages to their allies on the clandestine～. 他們通過秘密電臺把緊急情報(bào)發(fā)送給盟國。hear a warning on (over) a ship's～在船上的電臺上聽到了警告;

(3)收音機(jī)(piece of equipment that receives radio signals)[C](=wireless/radio set)：a pocket/portable/transistor～袖珍/便攜式/晶體管收音機(jī);turn on/off/down the～打開收音機(jī)/關(guān)上收音機(jī)/調(diào)低收音機(jī)的音量;a new～(set) 一臺新收音機(jī);

(4)無線電廣播(節(jié)目)(radio broadcast)[U，the]：advertisement on～and television 廣播和電視中的廣告;listen to the～聽廣播;He thinks the～is poor these days. 他認(rèn)為最近的廣播節(jié)目不好。I heard on the～that it's going to rain tonight. 我從廣播中聽到今晚要下雨。a～play/programme/announcer/station/speech 廣播劇/節(jié)目/員/電臺/講話;

→?radio-con′trolled adj 無線電操縱的;?radio-′frequency n 射頻，無線電頻率;′radiogram n 無線電報(bào);收音電唱機(jī);

v 用無線電聯(lián)系(發(fā)報(bào))(send a message by means of electrical waves)[I+prep，T+n，T+n+prep，T+that，D+n+that，D+n+wh，D+to+n+that，D+to+n+wh，C+to+n+to-inf無pass]：They～ed before they landed. 上岸前他們用無線電進(jìn)行了聯(lián)系?！玸b/New York/a message 用無線電和某人聯(lián)系/與紐約聯(lián)系/發(fā)信息;～(sb)for help/instructions 用無線電(向某人)呼救/請求指示;I～ed ((to) my parents) that I was safe. 我用無線電告知(父母)我很安全?！玸b where one was 用無線電告知某人自己在什么地方;～sb to come back 用無線電聯(lián)系某人，讓其回來