More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.The substituent is deuterium.取代基是重氢.the nucleus of a deuterium atom氘原子的原子核Deuterium is widely used in the study of reaction mec...
To cancel the airport would mean a loss of face for the present governor...撤销机场对现任州长来说将是件丢脸的事情。Our pianist had fallen ill, and then, at the eleventh hour, when we thought we’d have to cancel the performance, Jill offered...
Results Saponins in 80 % ethanol elution was the highest and over 36 %.结果80%乙醇洗液中苦瓜总皂苷的含量最高,可达到36%.Extracted ion chromatograms for protein chromatography based on peptide elution were generated.产生了基于肽洗提的蛋白色谱图的萃取离子色谱图.Res...
The recent public anxiety about this issue may now be abating.近来公众对这个问题的焦虑心情现在也许正在缓和下来.Instead of abating, the wind is blowing even harder.风不但没停,反而越刮越大了.The war crisis seemed to be abating.战争的紧张局势看来在渐渐缓和了....
火箭发动机的作用是瞬间的, 在适当的地方燃烧推进物生成 高速 粒子.A rocket motor's'bullets'are minute, high - speed particles produced by burning propellants in a suitable chamber.一种蓝色透明、有磁性的液体,由压缩气态氧获得,用作火箭推进物中的氧化剂.A two - component roc...