;
;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
固化过程,首先是羟甲基发生缩合反应,缩合反应
键是主要。
底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固化过程,首先是羟甲基发生缩合反应,缩合反应键是主要。
声明：以上例句、词性分类均由互联网资源自动生
，部分未经过人工审核，其表达内容亦不代表本软件
观点；若发现问题，欢迎向我们指正。
