breast drill

• n. 曲柄钻(胸压手摇钻)

breast drill的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

1. a portable drill with a plate that is pressed against the chest to force the drill point into the work

breast drill的用法和样例：

例句

用作名词 (n.)

1. They were twirling a brace drill.
   他们当时正在转动曲柄钻。