我知道这篇草稿需要校订。I know that this draft text will need to be edited.对文本认真仔细的校订a thoroughgoing revision of the text由谁校订未决.It is not yet decided who will edit it....
Engel is quoted as saying that balanced people do not become artists.引用恩格尔的话说就是理性的人是成不了艺术家的。The drop of the " Engel's coefficient'signified a new improvement in people's quality of life." 恩格尔 系数 " 的下降,标志着人...
Optionally, the purified diisobutylene may be hydrogenated to isooctane hydrogenation catalyst.任选的是, 可用加氢催化剂将纯化的二聚异丁烯加氢生成异辛烷.The process comprises first oligomerizing isobutylene to diisobutylene using a sulfonic acid ty...