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...
There is a preponderance of tiger in the forest.森林里老虎数量最多.This preponderance of military spending all ten years of Obama's medium - term scenario.这种军费开支的权重优势贯穿奥巴马的中期十年.There is a preponderance of hot days inand Augu...
Her bestseller "Peachtree Road" is soon to be made into a television mini-series.她的畅销小说《桃树路》不久将被拍成一部电视系列短剧。Men on horseback dashed out of side streets pell - mell down Peachtree toward Hood's headquarters.骑马的男人们乱糟糟地...
美是一种态度，与年龄无关。Beauty is an attitude. It has nothing to do with age.努力过，失败过，没关系，屡战屡败，屡败屡战，每一次失败都比上一次更好。Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.人生就应该是快乐的，要抓住每一天，孩子们，让你们的生活变得非凡起来。Carpe diem. Se...
无翼飞机首次试飞预计将于4个月内实施.WEAV is expected to first trial flight in 4 months.之所以选用Aptera这个名字,是因为这种电动车像小型的无翼飞行器.The name Aptera was chosen because the vehicle resembles a small, wingless aircraft.也许我们命中注定只能在梦中做无翼飞行,而在现实中永远叶做不到.P...
He pulled on a battered old crash helmet with a scratched visor.他戴上了一顶破旧的防护头盔，上面的面罩已有划痕。I put down the sun visor to shade my eyes from the light.我拉下遮阳板来遮挡耀眼的阳光。I had to stop at the traffic lights and put down the sun vis...
She at last condescended to evince awareness of his proximity.最后她才纡贵屈尊地表示出她注意到他在旁边.Thirdly, Live life without fear, confront all obstacles and evince that you can overcome them.第三, 活着,便不要畏惧, 要勇于面对一切生活的磨难,并且表明你能够克服他们.For ...