| 单词 | 发射信号 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔directional〕Electronics Capable of receiving or sending signals in one direction only.【电子学】 定向的：只能从一个方向接收或发射信号的美国传统〔transmitter〕A telegraphic sending instrument.发报器：电报机中发射信号的仪器美国传统〔transponder〕A radio or radar transmitter-receiver activated for transmission by reception of a predetermined signal.发射机应答器：一种收到预定信号之后就开始发射信号的无线电或雷达发射接收机美国传统The wrecked ship was firing flares to attract the attention of the coastguards. 遇难船正发射信号弹以引起海岸警卫队的注意。译典通 |
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