Keyer tube
[电] 电键管
🧩 词语组成解析
n. 键控器\\n[计] 键控器
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
When Greek meets Greek, then comes the tug of war.
龙争虎斗。
At last I hung up the receiver.
我终于挂上了话筒。