Hppler (rolling ball)viscosimeter
[化] 郝普勒落球粘度计
🗣️ 情景例句
Just the regular.
平信就好了。
Call no man happy until he dies.
盖棺才能定论。
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。