Well, we'll ship the bichromate in steel drums and the chromic anhydride in oil cans.嗯, 我们会把重铬酸盐用钢桶装,而无水铬酸则用油罐装.A polyamide imide was synthesized from trimellitic anhydride and di isocyanate.本文用偏苯三酸酐和二异氰酸酯合成了一种新型聚酰胺...
Anhydride - type curing agents require the application of heat to promote polymerization.酸酐类固化剂则要求加热以促进聚合反应.Exothermic reaction can be reduced by adding hexahydrophthalic anhydride to the phthalic anhydride.用六氢化邻苯二酸酐加入到邻...
Here vegetation is exiguous, edaphic barren, drought little rain, natural disaster is frequent.这里植被稀少, 土壤瘠薄, 干旱少雨, 自然灾难频繁.an exiguous budget极少的预算This area undulating hills, vegetation is exiguous, land backbone is thin.该...
疏水阀的流向要与管路流向一致.Steam trap flow direction in accordance with that of the pipe line.疏水阀是如何知道何时开启何时关闭?How does the steam trap know when to open and close?圆盘式疏水阀适用于高压差的蒸汽主管线,蒸汽管网的阻汽疏水.Disk type steam traps are for high press...
英语很多词源出于拉丁文和希腊文.Many English words are derived from Latin and Greek.这个词是从希腊文来的.The word comes from Greek.英语 television 是个语源混杂的词,因为 tele 来自希腊文,vision来自拉丁文.The English word " television " is a mongrel because " tele " come...