The half - life of francium is 22 minutes.钫的半衰期是22分钟.Francium is the densest of the Alkali Metals and also radioactive.钫是碱金属中密度最大的,具有放射性.Even Francium's most stable isotope, Francium - 223 only has a half - life of ...
她过着安逸的生活。She lived a life of ease.他过着安逸的生活.He led an easy life.安逸的家庭环境使他能够有效地从事他的事业.He could do his work in life efficiently with a background of domestic comforts....
她茫然的神情让我怀疑她是否在听.The vacancy of her expression made me doubt if she was listening.她脸上有种茫然的神情。She had a kind of vacant look on her face.我在她的眼睛里看到一种茫然的, 忿恨地难以理解的眼光.I recognized the blank , resentful stare of incomprehension...
Well, at any rate, let me thank you for all you did.好吧,不管怎样,还是要感谢你所做的一切。The rate of inflation is running at about 2.7 percent.通货膨胀率大约为2.7%。Experimenters have succeeded in controlling the rate and regularity of the heartb...
Last the demulsification mechanism of ASP flooding produced liquid was summarized.最后概述了三元复合驱采出液的化学破乳机理.Moreover, reuse of oil phase after demulsification is discussed.并且讨论了破乳后的油相回用情况.Objective: It is to investigate the s...