She blenches at the very thought of changing a baby's dirty nappy.她一想到给婴儿换脏尿布就不愿意.He needs his nappy changed.他的尿布该换了。I'll change her nappy.我要给她换尿布。Avoid changing a nappy unless it's dirty or very wet.除非尿布脏...
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...