It was shown that the curing process of resoles, at first, proceeded by condensation reaction of methylol groups, and the formation of dimethylene ether linkage was predominant.
结果表明热固性酚醛树脂的固化程,首先是羟
基发
缩合反应,缩合反应形成醚键是主要的。
It was shown that the curing process of resoles, at first, proceeded by condensation reaction of methylol groups, and the formation of dimethylene ether linkage was predominant.
结果表明热固性酚醛树脂的固化程,首先是羟
基发
缩合反应,缩合反应形成醚键是主要的。
声明:以上例句、词性分类均由互联网资源自动成,部分未
工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。