Fagarine
花椒碱
🗣️ 情景例句
This job is killing me.
这活儿都快把我累死了。
There is safety in numbers.
人多势众。
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。