Steinmannite
锑砷方铅矿
🗣️ 情景例句
Well,
好啦，
Fortune to one is mother, to another is stepmother.
命运对一种人如亲娘，对另一种人却是晚娘。
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。