On the other , many men was excavating the canalage drived by kurbash.

另一个大陆上，很多人在皮鞭驱使下开挖运河。

This paper gives a practical research.Usually,fluorescent lamps are drived by monophase alfernating Current.

本文介绍了将荧光灯由常用的单相交流供电改为三相交流供电的燃点方法。