Polyether - type isocyanate prepolymers are prepared with polyether polyols and tolylene diisocyanate.采用聚醚多元醇和甲苯二异氰酸酯合成了聚醚型异氰酸酯预聚体.A polyamide imide was synthesized from trimellitic anhydride and di isocyanate.本文用偏苯三酸酐和二...
Situations of preparing isocyanate trimers at home and abroad are mainly introduced.主要介绍国内外异氰酸酯三聚体的制备状况.Polyether - type isocyanate prepolymers are prepared with polyether polyols and tolylene diisocyanate.采用聚醚多元醇和甲苯二异氰酸...
The circular points are really a degenerate conic.虚圆点实际上是一退化的二次曲线....a group of degenerate computer hackers.一群堕落的计算机黑客Will too much freedom make them degenerate?太多的自由会令他们堕落 吗 ?...the degenerate attitudes he found among s...
World Horticulture Exposition garden: hosted the International Horticultural Exposition in 2006.世界园艺博览园: 在2006年举办了世界园艺博览会....little-known horticultural facts and fables.有关园艺的鲜为人知的事实和谬传...Monkton horticultural show.芒克顿园艺展...
Is he going to think I'm some kind of kinky, sex - starved, divorcee?如果他认为我是个性饥渴的变态离婚女怎么办?Neither should be a divorcee.且两人都没离过婚.It had been speculated that the settlement could have left her the world's richest...
How are you Lennox? Good to see you up and about.你怎么样，伦诺克斯？很高兴看到你能下床走动了。"How are you, mate?" — "Not bad, mate, how's yourself?"“最近怎么样，老兄？”——“还不错，你呢？”"How are you?" —"All the better for seeing you."“你好吗？”—“好，看见你更好了。”...