Flowmeters
na. 流量计; 流速计
🗣️ 情景例句
Oh. I have the key. Grandpa sent it to me.
啊。钥匙在这里。爷爷寄来给我的。
It's her birthday and she wants to gives us all a treat.
这是她的生日，她要款待我们大家。
It is our permanent principle that contracts are honored and commercial integrity is maintained.
重合同、守信用是我们的一贯原则。