This paper analyses selectors of transverse differential current directionprotection using two types polarizing voltage for double circuit lines on the same tower.
对两种极化电压下的横联差动电流方向保护的选择元件在同杆并架双回线故障下的动作行为进行了研究。
2
Mr. Gal-Or says he's confident that China is moving in the right direction by promoting the development and protection of intellectual-property rights to spur growth.
高哲铭说，中国通过推动开发和保护知识产权促进经济增长而迈向正确的方向，他对此很有信心。
3
Environmentally protection consumption behavior is a vital content in ecological balance and environment protection, and it is also the future direction in the future consumption of the present world.