碳的诸多同位素the many isotopes of carbon碳的化合价是4价。Carbon has a valency of 4.通过环氧化和氧化就得到外消旋的含十八个碳的昆虫返动激素.Epoxidation and oxidation gave the racemic C 18 - juvenile hormone....
这一举措会对该组织造成不可弥补的损害。The move would cause irreparable harm to the organization.她的去世对公司是不可弥补的损失.Her death is an irreparable loss to the firm.如果该运动因这一问题被回避而承受无法弥补的损失，那将是何种悲剧。What a tragedy if the sport suffers irretrievable ...
Washington struck me as a precarious place from which to publish such a cerebral newspaper.我的感觉是，在华盛顿出版这样一份理性的报纸不是太靠谱。A language is a finely tuned instrument which it is a crime to damage...语言是一种精心调试的乐器，破坏它就是一种罪过。...a bu...
Objective To determine the chlorhexidine content through reaction between chlorhexidine and alizarin Bordeaux.目的通过醋酸洗必泰与与醌茜素的显色反应来测定洗必泰栓中醋酸洗必泰的含量.The Vikings also attacked Rouen, Nantes, Toulouse and Bordeaux, and laid s...
He always put his point of view with clarity and with courage.他总是清楚而勇敢地提出自己的观点。The style is marked by simplicity, clarity, and candor.这种风格的特点是简洁、清楚、直截了当。This remarkable technology provides far greater clarity than conven...