Overhead transmission lines are the vitals of power system. Its main function is to transmit electricity.
架空输电线路是输电系统的命脉，它的主要作用是传输电能。
2
The main advantage of this method is that its overhead is pretty low. Practical results show that this method is very effective.
这种算法最大的优势是开销小，实用性强，对原型系统的测试证明了这种算法的有效性。
3
The heat resistant overhead conductors are widely used, as the main renewal conductor type for renovation and capacity expansion of urban networks, in the renovation of regional grids.