telegraph key
英：[ˈtelɪˌgræf ki:] 美： [ˈtɛlɪˌɡræf ki]
telegraph key 基本解释
释义发报电键；
英英释义
telegraph key
n.key consisting of a lever that sends a telegraph signal when it is depressed and the circuit is closed
telegraph key 相关例句
权威例句
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