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...
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...
Interior decoration by careful coordination seems to have had its day.精心搭配的室内装饰似乎已不再受欢迎了。Intoxication interferes with memory and thinking, speech and coordination.醉酒影响记忆、思考、语言与协调性。This exercise improves your coordination...
如果核战争爆发，地球上的所有生物都会被毁灭。If a nuclear war breaks out, every living thing will be wiped off the face of the Earth.[新译]他施的船只啊,要哀号!因为你们的保障已被毁灭了.KJV Howl, ye ships of Tarshish : for your strength is laid waste.在一次猛烈的火山爆发中,庞贝这座意...
The recent rebound in mortgage rates could snuff out the housing recovery.抵押贷款利率最近的回升可能会扼杀房地产的复苏。Bad deeds , as well as good, may rebound upon the doer.善有善报, 恶有恶报.She quarrelled with Paul and then married Peter on the re...