Aerobism
需氧性
??? 情景例句
I think we're going to be good friends.
我想我們可以成為好朋友。
That's another story.
那是另一回事。
and we control it by means of the mud which we circulate down the drill pipe.
我們讓泥漿順著鉆桿向下循環，用這種方法來控制壓力。