英语词汇“telegraph key”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	telegraph key
释义	telegraph key短语¹⁴⁴⁹⁷²⁺² 基本英英发报电键 Noun: key consisting of a lever that sends a telegraph signal when it is depressed and the circuit is closed
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