Picknometer,pycnometer
[化] 比重瓶; 比重管
🗣️ 情景例句
It's the way it should be.
本该如此。
I've never read a more stimulating story.
我没有读过比这更刺激的故事。
Pretending to speak seriously, one of the workmen asked if he might make a telephone call before being taken to the station.
其中一个工人装模作样地问道，在被带往警察局之前，是否可以打一个电话。