telegraph key

 
  • 發報電鍵
new

telegraph key的英文翻譯是什麼意思,詞典釋義與在線翻譯:

英英釋義

Noun:
  1. key consisting of a lever that sends a telegraph signal when it is depressed and the circuit is closed

今日熱詞
目錄 附錄 查詞歷史