This paper analyzes the glyceryl polyether by nuclear magnetic resonance ( NMR ) spectroscopy .用 核磁共振 分析了甘油聚醚.The preparation of catalysts , yield of glyceryl triacetate and and demerits the catalysts were introduced bri...
The preparation of catalysts , yield of glyceryl triacetate and and demerits the catalysts were introduced briefly.对上述催化剂制备、三醋酸甘油酯收率、催化剂优缺点作简要介绍.This paper analyzes the glyceryl polyether by nuclear magnetic resonance ( ...
这是一对感应线圈.This is a double induction coil.烧穿的线圈应换新的.The burnt coil should be renewed.埋在地下隧道里的线圈可能很快就会被用来储存大量的电。Coils buried in tunnels below the ground might soon be used to store large amounts of electricity....
There is a wide veranda under the overhang of the roof.悬吊的屋顶下是一条宽阔的游廊。The wide road was blocked solid with traffic that moved along sluggishly.宽阔的马路被缓慢前行的车辆堵得严严实实。He is a cultured man with a wide circle of friends.他为人文雅，...
Move the little doggy.把小狗挪开点。Well - to - do canines ['keinain ] can attend doggy daycare centers while their owners work.家境 富裕的狗儿在主人上班的时候可以去狗儿托育中心.May I have a doggy bag?我可以打包 吗 ?Well - to - canines can attend doggy...