transmission llne的用法和样例：
例句
- The relay has been used as a key element to realize a new carrier-pilot protection of HV and EHV transmission lines.
由它作主元件实现了一套用于高压和超高压输电线路的新型方向比较式纵联保护。 - Malleable cast ironware produces hysteresis and eddy current loss under alternating current in transmission!line.
针对输电线路上可锻铸铁金具在交变电流的作用下产生磁滞和涡流损耗。
