Orificemeter
锐孔流速计, 测流孔
🗣️ 情景例句
What are you doing?
你在干什么？
No one can call back yesterday;Yesterday will not be called again.
昨日不复来。
not because he cannot afford, or shuns, their meterial comforts, but because he is afraid of them.
这并不是因为他们付不起钱，也不是为了躲避物质享受，而是因为他们害怕酒店。