These electric powers electronics equips to make a harmonic pollution problem within the electric power system is serious gradually.
这些电力电子装置使得电力系统中的谐波污染问题日趋严重。
On the basis of Longkou Mining Group mine harmonic pollution, and harmonic pollution to electric network power equipment and power supply into the effect and harm.
本文根据龙矿集团矿区电网谐波污染状况，及谐波污染给矿区电网供用电设备和供电电能质量带来的影响和危害。
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