The study on shunt active power filter, which is a novel device compensating harmonics and reactive power current simultaneously, is the focus in the field of power quality control.

并联有源电力滤波器作为一种新型的谐波、无功综合补偿系统，是电能质量控制领域中的研究热点。

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The All Stainless Steel Pressure Gauge has an internal compensating diaphragm and a filling plug for field filling.

全不锈钢安全 压力表顶部设有充液塞及一个内部补偿膜片，可在现场充液。

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The invention provides a built-in wide-angle LED light-compensating lamp which relates to the technical field of license plate recognition in an intelligent traffic system.

本发明提供了一种内置式宽角度LED补光灯，涉及智能交通系统中车牌识别技术领域。

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