zigzag current

例句：

1. 1. The zigzag current is causing the bridge to sway violently.
   曲折电流导致桥梁剧烈摇晃。
2. 2.The zigzag current is responsible for the frequent power outages in the area.
   曲折电流是该地区频繁停电的原因。
3. 3.The zigzag current has been a major concern for engineers designing new power grids.
   曲折电流一直是工程师设计新电网时的一大关注点。