Pitchblende and chalcolite are much more radioactive than uranium itself.沥清铀矿和铜铀云母比纯铀的放射性强得多.Chalcolite ( crystallized phosphate of copper and uranium ) is about twice as radioactive as uranium.铜铀云母 ( 铜和铀的磷酸盐结晶体 ) 的放射性是铀...
Unleaded gasoline rose more than a penny a gallon.无铅汽油每加仑涨了1分多。Certain truck gasoline tanks can rupture and burn in a collision.某些卡车的油箱在碰撞时可能发生爆裂并起火。What happens when food and gasoline supplies run low?如果食物和汽油供应减少，会出现什么情...
他的散文文笔有力、内容庞杂，有时几近晦涩。His prose is vigorous and dense, occasionally to the point of obscurity.从他的文笔可以看出他思维敏捷。Everything he writes demonstrates the acuteness of his intelligence.他文笔优美，适合当诗人。He writes beautifully, as befits...
The technology of preparing sodium - copper chlorophyllin from carrot leaves was studied.由胡萝卜樱叶提取叶绿素并经皂化、铜代及成盐反应制备叶绿素铜钠.The overall yield of sodium copper chlorophyllin is 41.3 %.全过程叶绿素铜钠盐的收率可达41.3%.GLUCOSE - FRUCTOSE SY...
Sumptuous food and patriotic music created an atmosphere of elegant conviviality.佳肴盛馔和爱国乐曲,使气氛十分优雅而欢乐.The portraits and sumptuous ornaments, and the gold clock, show that this is not just any old front room.墙上挂的画像、奢华的装饰和...