Stoichiometer
[医] 化学计算器, 化学计量器
🗣️ 情景例句
Well. It will be up immediately.
好，立即给你送去。
Do I have to reserve a seat?
我一定要预订座位吗？
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。