the many isotopes of carbon碳的诸多同位素Tritium is one of the mildest radioactive isotopes.氚是最和缓的放射性同位素之一.The inferno spewed a deadly plume of radioactive isotopes into the atmosphere.这个象炼狱般的地方将一缕致死的放射性同位素喷入大气层....
There are two main types of uses of radioactive isotopes in biochemistry.在生物化学中,放射性同位素主要有两方面的应用.Nucleon and use of radioactive isotopes to launch particle ionizing air molecules.核子中和利用放射性同位素发射粒子,使空气分子电离.More reactive are...
鲍勃·迪伦的疯狂歌迷们对他的盗版唱片视若珍宝。Avid Bob Dylan fans treasure bootlegged recordings.王冠上镶嵌着稀世珍宝—有钻石、红宝石、绿宝石。The crown was set with precious jewels—diamonds, rubies and emeralds.那份珍宝安然无恙地存放了几个世纪。The treasure had lain undisturbed for...
他们被满橱窗陈列的钻石和皮草弄得眼花缭乱。They were dazed by window displays dripping with diamonds and furs.参赛作品将陈列在展厅显眼的地方。Entries will be prominently displayed in the exhibition hall.展览陈列了50幅油画和水彩画。The exhibition comprises 50 oils and wat...
解决了最初的一些问题之后，终于成功地制造出了大量丙酮。After some initial problems, acetone was successfully produced in quantity.这两个氨基酸从丙酮酸获得它们的碳架.These two amino acids derive their carbon skeletons from pyruvate.将乙酰丙酮铁, 苯基B- 萘胺及磷脂通过40目筛加入.The fer...
I'll give her a platinum ring.我打算送给她一枚白金戒指.Platinum exceeds gold in value.白金的价值高于黄金.Metals commonly mixed with gold are nickel, platinum, and copper.通常与金混合的金属有镍 、 铂和铜....
The huntsman sent a beater ahead to scare out the partridge.猎人派一名赶猎助手上前把鹧鸪从隐蔽处赶出来.He works as a panel beater in a local garage.他在当地一家修车厂做板金维修工.Whisk the batter with a wire whisk or hand beater until it is smooth and ligh...