Hydral
水合氯醛
🗣️ 情景例句
Good.
好极了。
I'm going to tell him what to say.
我正要告诉他应该说什么。
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。