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
Robbie's cooking tonight, and dinner's at six thirty.
今晚Robbie作饭 晚餐六点半开始。
I'm glad to hear about your promotion.
我很高兴听到你升迁的消息。
We have this item in three price levels.
此一品目，我们分三种等级的价格。