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...
coral knoll珊瑚丘Knoll thinks for a moment and says, " Beg for mercy. "克诺想了一会后说: “ 乞求宽大. ”...on Nibley Knoll.在尼布利小山上sea knoll海丘...a grassy knoll.长满草的圆丘Silver had terrible hard work getting up the knoll.对于希尔弗来说,爬上那小山丘真不是件容易事...
Hotkey categories and commands now appear in alphabetical order in the Hotkey Editor.在快捷键编辑器中快捷键分类与命令现在以字母顺序排列出现.Additionally, Category Locator simplifies organization of notes by multiple categories.另外, 类别定位器简化笔记的组织按多个类...
“啊，我有时会感到绝望，”他假装悲伤地说。"Oh, I despair sometimes," he says in mock sorrow.戴维斯悲伤地问道：“我们难道就不能做点什么吗？”"Why don't we do something?" Davis asked plaintively.他们悲伤地环视眼前的情景.They sadly surveyed the scene before them....