The drill should be slowly rotated to ensure a clean hole.钻头必须缓慢转动，以保证钻孔平整光滑。The colours rotated round on a disc and were reflected onto the wall behind.圆盘上色彩流转，反射到后面的墙上。To combat this tendency, Carlson rotated his top e...
The drill should be slowly rotated to ensure a clean hole.钻头必须缓慢转动，以保证钻孔平整光滑。To combat this tendency, Carlson rotated his top executives.为了反对这种倾向, 卡尔森轮换他的高级行政主管.A method is presented to design a rotated Barnes - Wall lat...
Not for nothing was the plane called "The widow-maker"这种飞机被称作“寡妇机”是事出有因的。She's a widow now.她现在是寡妇。The widow is in possession of a large fortune.那个寡妇占有大笔财产....
黑药和镁的混合物具有离析的倾向.Mixture of black powder and magnesium have a tendency to segregate.这能离析为旋光异构体 吗 ?Can it be resolved into optical isomers?看物质能否由于沸腾和冻结而离析为组成该物质的元素.See whether the material can be separated into its element...