Paddles are used especially to propel canoes and kayaks.短桨特别用于划独木舟和小艇.He paddles his own canoe.他自己划独木舟.Some tugs on rivers still have paddles.有一些河上的拖船现在还用明轮翼....
Rafts are crewed by ten men who use single bladed paddles.救生艇上有十名船员,全都使用单叶桨.Some tugs on rivers still have paddles.有一些河上的拖船现在还用明轮翼.Paddles are used especially to propel canoes and kayaks.短桨特别用于划独木舟和小艇.He paddles his own ...
Hence, ebonite is in fact one kind of thermosets.因此, 硬质橡胶实质上是一种热固性塑料.Some properties were also discussed and the multi - functional ebonite would be promising in future development.还简述了硬质橡胶性能,指出通过改性使其 高 功能化是这类硬质橡胶材料的发展方向...
It's about 500 kilowatts per hour on average.年用电量平均为每小时500千瓦.We have an emergency - standby electric generator with a capacity of 300 kilowatts.我们有一台三百千瓦的事故备用发电机.It covered 167 square meters and needed 160 kilowatts...