Basale
鳍基条
🗣️ 情景例句
I really appreciate it.
我真的很感激。
Sorry, it's broken. You have to use the stairs.
对不起，它坏了，你只能走楼梯了。
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。