the medical certification of the cause of death为死因出具医学鉴定He received his certification as a high school English teacher.他取得了中学英语教师证书.This will serve as certification.以此为凭....
如果氟的含量高, 会加剧设备的腐蚀.If the fluorine content is high, it may increase plant corrosion.阐述用氟离子选择电极测定低铬钝化液中的氟的方法.Ion selective electrode analysis of fluoride in deluted chromating solution is described.结论氟化牛奶中氟的生物利用率是足够高的.Conc...
这层大气称为外逸层.This region is called exosphere.在对流层上是平流层, 接着是电离层,最上层是外逸层.Above the troposphere is the stratosphere, followed by the ionosphere and capped by the exosphere....