It is intended for external installation on a test vehicle via the use an electro-cleavable adhesive.
用一种电可分离粘合剂将它安装在试验机上.
Three noncyclic acetal-linked cleavable surfactants were prepared based on the optimum condition by condensation of para formaldehyde with polyethers O-9, O-15, O-20. The yield was 88.6%, 81%, 75%, respectively and the structure was determined by NMR.
采用最佳工艺条件合成了O-9、O-15、O-20缩甲醛三种分子量较大的缩醛型聚醚,产率分别为88.6%、81.9%、75%。
简答网 · 高考英语
简答网 · 双语娱乐资讯
简答网 · 中考英语
简答网 · 双语新闻
简答网 · 职场英语