火药是由硫 、 碳和硝酸钾组成.Gunpowder is composed of sulfur, carbon, and potassium nitrate.氨对硝酸钾的选择分离结晶效果较好.And ammonia had effective selectivity for the separation of potassium nitrate.用氯化钾与硝酸铵为原料,采用复分解法生产农用硝酸钾与氯化铵.Agricultural pot...
一幅罗里·奥穆尔的画像挂在基尔丹根的餐厅里。A picture of Rory O'Moore hangs in the dining room at Kildangan.她说这张模拟画像像极了绑架她的人。She says the artist's impression is an excellent likeness of her abductor.他让人画了一幅身着制服的画像。He had his portrai...