The gypsum slurry is pumped into a diked area.我们用泵将石膏料浆打到一块用堤围起来的空地中.Thickeners were introduced for separating the acid and gypsum.用稠厚器来分离酸和石膏.Gypsum may crystallize on the surface of the phosphate rock particles.石膏会在磷矿颗...
他含含糊糊地找了个蹩脚的借口，想要解释自己为什么睡着了。He mumbled some lame excuse about having gone to sleep.他们现在会找个蹩脚的借口重新发动战争。They would now find some dubious pretext to restart the war.他是个蹩脚的演员。He was a poor actor....