To reduce error due to voltmeter non-ohmic contacts, use shielding and appropriate grounding to reduce ac pickup.
为了降低电压表的非欧姆接触所产生的误差，采用屏蔽和适当的接地措施来降低交流干扰。
This paper analyzed the effect of shielding between hollow grounding devices and between hollow grounding device and ground grid.
并通过模拟试验分析了接地坑、自然水对降低空腹式接地装置的接地电阻的作用。
The CNC system adopts grounding, filtering, shielding and so on for anti-electromagnetic interference.
数控系统抗电磁干扰主要采用接地、滤波和屏蔽三种技术。
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