Wood flooring not only cleans easily, but it's environmentally friendly into the bargain.木地板不光容易打扫，而且还环保。More and more companies have gone "green" and started producing so-called environmentally-friendly products.越来...
An equivalent physical model is developed by some hypothesizes for three phases asynchronous electromotor.本论文中通过对三相异步电动机作出四条假设,得到电机的等效物理模型.Weyand hypothesizes that the dendritic cells in arteries are mainly performing a ...
There's a nasty mark on the tablecloth, and I don't think the usual washing powder will take it out.桌布上有一块污迹, 我想用普通洗衣粉是洗不掉的。If the bailiff thinks that things could turn nasty he will enlist the help of the poli...