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.It is infrequence in China that the weld high - temperature high - pressure hydrogenation pipe ...
It's only been latterly that we've discovered that it's lots of individual reefs, around about 2,900 separate reef systems which make up the Great Barrier Reef.直到近来我们才发现,它们其实是众多独立的礁石, 大约有2900个独立的礁石系,组成了大堡礁...
他摇摇头，用纸巾擦掉眼泪。He shook his head and wiped his tears with a tissue.法官生气地摇摇头，朱克斯安静下来。The judge shook his head irritably and Juicks hushed.他抽了口烟斗，摇了摇头。He took a puff on his pipe and shook his head....
Kann man hier auf der Post auch Geld einzahlen, abheben und ü berweisen?这封信我必须寄挂号.Lukas Podolski: Ich habe mich nie von Geld beeindrucken lassen.小猪: 我不用为生计担忧了.Unsere g ü nstigen Austauschmotoren und der geringe Kraftstof...