六亚甲基二异氰酸酯 ( HMDI ) 可用在预聚物中代替甲苯二异氰酸酯〔TDI〕.Hexamethylene diisocyanate ( HMDI ) may be used in prepolymer, in place of TDI.柯达叙述了一种直链的活性亚甲基两当量的黄成色剂.Kodak company describes open chain reactive methylene two - equivalent yello...
The Bourdon - type pressure gauge is more convenient for most purposes than a liquid manometer.在很多情况下,使用鲍敦式压力计要比液体压力计更为方便.What kind of piping system should the Bourdon effect be considered to?哪种类型的管系中应考虑到波登效应?Effect of d...
目的探讨老年人心脏瓣膜钙化的病因.Objective To discuss the etiology of cardiac valve calcification in elderly.绒毛膜转移癌治愈后可以在病变部位看到钙化的痕迹.Calcification has been noted at the site of successfully treated metastatic choriocarcinoma.心脏学家已经意识到了C...
They themselves are energetically prohibiting gambling and suppressing banditry.他们自己在那里努力禁牌赌,清盗匪.At present we must energetically encourage the practice of making investigations and studies.目前,我们要大兴调查研究之风.He had worked e...
Sue screamed, not loudly, more in surprise than terror.休尖叫起来，声音不大，吃惊多于恐惧。The officials felt taken for granted and grumbled loudly.这些官员感到受了怠慢，于是大声抱怨起来。She sucked an ice cube into her mouth, and crunched it loudly.她吸了块冰块到嘴...