试验探棒还需穿过在表面覆盖一层非导电涂层如瓷釉或清漆的接地金属外壳的开口。
The test probe is also applied through openings in earthed metal enclosures having a nonconductive coating such as enamel or lacquer.
即缺陷接地结构，它是近年来提出的一种在微波平面电路接地版上刻蚀出非周期形状的结构。
Defected ground structure (DGS) is a nonperiodic structure proposed in recent years, which means machining various shapes of etching on the ground plane.
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。
To reduce error due to voltmeter non-ohmic contacts, use shielding and appropriate grounding to reduce ac pickup.
相对于中性点非直接接地系统而言，发生在中性点直接接地系统中的铁磁谐振过电压有着许多新的特点，而且对它的研究相对较少。
Compared with neutral ungrounded power system, ferroresonance overvoltage occurred in neutral grounded power system has more new features, and the research about it is much.
在中性点非直接接地电网中，单相接地及由电压互感器(PT)引起的谐振过电压均是多发性的事故。
In ungrounded distribution system the single-phase-grounding and the ferro-resonance caused by the PT (Potential Transformer) are of the frequent accidents.
分析了在原有的低通滤波器的基础上加入了非周期缺陷接地结构后对滤波特性的影响。
Furthermore, the effect of Combinatorial Nonperiodic Defected Ground structure (CNPDGS) on the characteristic of the low-pass filter formed by the CNPDGS structure is studied.
即缺陷接地结构，它是近年来提出的一种在微波平面电路接地版上刻蚀出非周期形状的结构。
This paper presented a novel combinatorial non-periodic defected ground structure (CNPDGS) and its application in the lowpass filter.
针对小电流接地系统单相接地故障定位的研究现状，提出基于非故障相暂态电流的单相接地故障定位的思想。
Combined with the research status of single-phase-to-ground fault locating for small current grounding system, a new idea based on non-fault-phase transient current is presented.
针对小电流接地系统单相接地故障定位的研究现状，提出基于非故障相暂态电流的单相接地故障定位的思想。
Combined with the research status of single-phase-to-ground fault locating for small current grounding system, a new idea based on non-fault-phase transient current is presented.
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