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...
A new method for fabricating micro - optical elements with aspherical outlines is discussed.讨论了一种制作非球面微光学元件的新方法.This paper presents the design principle and method of an opticalfor plastic aspherical door scope.介绍了一种塑料非球...
Stefano's grip tightened and his tone became colder.斯蒂芬诺的手抓得更紧了，语气也更冷了。It was cold yesterday, but it's even colder today.昨天冷, 今天更冷了.It is cold now, but it'll be still colder tonight.现在很冷, 但今晚更冷....
He's facing the hangman's noose , ie waiting to be hanged.他面临绞刑.Name not a halter in his house that hanged himself.(谚语)房里有人吊死,千万别提绳子.He was hanged for his crimes.他因犯罪而被处绞刑。The five were expected to be hanged at...
The old town centre is girdled by a boulevard lined with trees.一条林阴大道环绕古城的中心。The city is girdled about with gently rolling hills.该市为平缓起伏的丘陵所围绕著.People usually girdled lake with trees.人们通常用树来环绕湖水....