This not only abbreviates catalytic cracking equipment, but also enhances the economical effects of refineries plant.这样不仅缓和了催化装置的操作, 而且可为炼油厂开发出新产品,创造经济效益.Taking p chlorotoluene as raw material , 2,4 Dichlorotoluene was s...
虽然这是一场艰苦的斗争，但我相信我们会取得胜利。It's an uphill battle but I think we're going to win.不管结果如何，这都会是场艰苦的战斗。Whatever the outcome, it's going to be one hell of a fight.起初好玩的事很快就变成了艰苦的工作。What started out as fun quickly b...
THIS IS THE FIRST IN A LONG LINE OF THANKSGIVINGS TO COME.我只愿和你共度感恩节.Thanksgivings are hard to feel thankful for, with dinner served on a cold, metal cafeteria tray.感恩节吃的是自助食堂里用金属餐具盛装的晚餐, 很难让人产生感恩之心....
Allene is an isomer of methyl acetylene.丙二烯是甲基乙炔的一种异构体.Esomeprazole, a new proton pump inhibitor, is the S - isomer of omeprazole.艾司奥美拉唑是一种新型的质子泵抑制剂, 它是奥美拉唑的S - 型光学异构体.For example , 2, 6 - Dinitrotoluene and 2, 4 - Dinit...