Allergist
n. 过敏症专科医生
🗣️ 情景例句
I suppose so.
我想是这样吧。
I think so.
我想是这样。
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。