In electric railway traction substation, power capacitors and harmonic filters are the important devices for improving both the power factor and the power quality.
在电气化铁道牵引变电站中，装设无功补偿电容器和谐波滤波器是提高功率因数、改善电能质量的重要手段。
Stained quartz glass for filters has been made by ion diffusion under high-tension electric field. The equipment and process are described.
利用高压电场离子扩散法试制滤光石英玻璃，介绍了该法的装置与工艺。
Specializing in the production of a variety of imports, domestic automotive electric fuel pump filters for a variety of brands both at home and abroad supporting the use of motor vehicles.
专业生产各种进口、国产汽车电动燃油泵过滤网，可为国内外各种品牌汽车配套使用。
By electric field coupling, three second-order bandpass filters with elliptic function response and high miniaturization performance were design and fabricated.
采用电场耦合方式分别设计并加工了三个小型化性能非常突出的具有椭圆函数响应的二阶带通滤波器。
By electric field coupling, three second-order bandpass filters with elliptic function response and high miniaturization performance were design and fabricated.
采用电场耦合方式分别设计并加工了三个小型化性能非常突出的具有椭圆函数响应的二阶带通滤波器。
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