The main gold bearing minerals include arsenopyrite, pyrrhotine, pyrite, galena and sphalerite.金矿的主要载金矿物分别为:毒砂 、 磁黄铁矿 、 黄铁矿 、 方铅矿和闪锌矿.Diethyldithiocarbamate was more better selective collector than Xanthate on galena.与黄药...
I am a registered elector for a the geographical constituency.本人已登记为地方选区的选民.A registered elector is entitled to subscribe only ONE nomination form.每一位登记选民只可签署一份提名表格.Good - day to you, Monsieur the Elector!早安, 选董先生!...
Manned submersibles, like spaceships, must maintain living conditions in an unnatural environment.载人的潜水器与宇宙飞船一样, 必须在非自然的环境下保持生存条件.You have to zap the invading spaceships to get points.(玩电动玩具等)你必须干掉入侵的太空船才能得分.Spaceships m...