Wheatstone perforator
[电] 惠斯登凿孔机
🧩 词语组成解析
惠特斯通（人名）
perforator
['pɜ:fəreɪtə]
n. 穿孔器，穿孔员;凿孔机;
🗣️ 情景例句
Sorry, I'm afraid I'm busy tonight.
很抱歉，恐怕我今晚没空。
I don't like working on Sunday.
我不喜欢在星期天工作。
Thus the rods, by falling, and by the direction in which they fell,
木棒倒下的多少和倒下的方向