Polydatin
[化] 虎杖苷
🗣️ 情景例句
Sit down, sit down.
请坐， 请坐。
Habit is a second nature.
习惯成自然。
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。