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...
Bake some big red peppers and hollow them out.将几个大红甜椒烤一烤，再把它们掏空。Fry remaining peppers, adding a little more dressing if necessary.用油炸一下剩下的辣椒，如果需要再加点调味汁。Vegetables such as peppers can overpower the flavor of the stock.像甜椒...
这部手稿只是他们的珍藏之一。The manuscript is just one of the treasures in their possession .敌军士兵劫掠走了艺术博物馆的珍藏.The enemy soldiers have looted the treasures of the art museums.敌军士兵抢走了艺术博物馆的珍藏.The enemy soldiers looted the treasures of t...