tapper

n. 輕敲者、電報鍵

攻螺絲機

學術名詞

• 電報鍵：電機工程、電力工程
• 輕擊錘：電機工程、電力工程
• 攻螺絲機：機械工程

英文釋義

1. a tavern keeper who taps kegs or casks
2. a person who strikes a surface lightly and usually repeatedly
3. a worker who uses a tap to cut screw threads
4. someone who wiretaps a telephone or telegraph wire