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1·The characteristics of electromagnetic interference typical for generating units and microprocessor relay protection equipment was given.

——电磁干扰的典型特点及微处理器为机组继电保护设备进行了必要的分析说明。

2·System errors for the electromagnetic sensing system of helmet - mounted sighting units is analysed and the method of correction is presented .

分析了用于头盔瞄准具的电磁敏感系统的系统误差，提出了一种校正方法。

3·The electric field, magnetic field and electromagnetic force have better penetrated ability but less near-wall strength whiles the propulsion units of wider magnetic poles.

电磁条带较宽的推进单元体所激发的电场，磁场和电磁力都具有更好的渗透效果，但相应同深度场强值较小。

4·The geometric parameters, the hexagonal side length and the lattice period of the metal dendritic array units are reasonably designed to generate electromagnetic resonance.

合理地设计金属树枝单元的几何参数，六边形边长以及晶格周期，产生电磁谐振。