Orificemeter
锐孔流速计, 测流孔
🗣️ 情景例句
First, you shuffle the deck
首先， 得洗一下牌，
What we are ignorant of is immense.
我们不知道的东西多得不可胜数。
We appreciate your fast service.
麻烦你会尽力处理，谢谢。