| 单词 | 信号器 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔annunciator〕One that announces, especially an electrical signaling device used in hotels or offices to indicate the sources of calls on a switchboard.信号器，示号器：宣告物，尤指饭店或办公室中使用的一种电子信号装置，用来指示交换台上的呼叫信号来源美国传统〔bleep〕When we turned the boat about, the signal began to bleep again constantly.当我们把船调头的时候，信号器又不停地发出哔哔声。柯林斯高阶〔block〕A length of railroad track controlled by signals.受信号器控制的铁轨美国传统〔heliograph〕A device for transmitting messages by reflecting sunlight.日光反射信号器：以反射的太阳光传递讯息的仪器美国传统〔heliograph〕To send (a message) by heliograph.以日光反射信号器传递（讯息）美国传统〔heliograph〕To send a heliograph.以日光反射信号器发送信息美国传统 |
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