介绍了吩噻嗪的制备方法, 主要是二苯胺与硫在催化剂存在下反应的方法.Its preparation method, which mainly reacted by diphenyl amine and sulfur with catalyst, is introduced.本文报道了两种新的吩噻嗪衍生物的合成, 光学及其电化学性质.The synthesis, luminescence and electrochemical prope...
本研究为寻找初潮年龄的相关基因及基因的精确定位奠定了坚实的基础.Our study laid a foundation for positional and functional candidate gene studies.月经初潮早的女性BMD值比月经初潮晚的女性高 ( P & lt; 0.05 ).Menarche at earlier age was associated with a higher BMD ( P & lt; ...
When it comes to talking about patriotism, he's an extremist.一谈到爱国主义, 他就很偏激.This poem is imbued with patriotism.这首诗充满了爱国主义.Patriotism is every politician's stock-in-trade.爱国主义是政客们的惯用伎俩。He was a country boy who ...
她能听见室内管弦乐队尖细的旋律。She could hear the tinny strains of a chamber orchestra.她抱怨时抬高了尖细的嗓音。Her thin voice rose high in complaint.她喜欢用笔头尖细的铅笔, 我不喜欢.She likes to use pencils with fine points; I don't....
...replaceable butane gas cartridges.可替换丁烷气贮气瓶R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.Phenolic Backed Seat: Non - collapsible...