在许多情况下异氰酸酯同水, 醇和胺发生猛烈的反应.In many instances isocyanates react vigorously with water, alcohols, and amines.这类含氮化合物的例子是咪唑, 三聚氰酸三酰胺, 三聚氰酸一酰胺.Examples of such nitrogenous compounds are imidazole, ammeline, ammelide.六亚甲基二异氰酸酯 ...
The aortic valve shows three thin and delicate cusps.主动脉瓣由三个薄而精细的瓣叶组成.Note there are three cusps sewn into a synthetic ring.可见三个瓣叶围绕形成环.Nodules of calcification are seen on the cusps here.可见瓣膜尖端有钙化结节....
You don't have to go running upstairs every time she rings.用不着她一来电话你就往楼上跑。They actually moved down from upstairs because the rent's that expensive.他们确实从楼上搬到了楼下，因为房租太贵了。She climbed the steps and proceeded along ...
Their new manifesto hardly threatens to bring the whole edifice of capitalism crashing down.他们新的宣言声称要摧毁整个资本主义大厦，这是不可能的。The American consulate was a magnificent edifice in the centre of Bordeaux.美国领事馆是位于波尔多市中心的一座宏伟的大厦。a n...