在信号源附近的电磁影响是最严重的，所以尽量少接触诸如电脑、电视、微波炉、电冰箱等设备能够有效减少电磁干扰的影响。
The effect is strongest closest to the source, so literally stepping back from major in-home sources like the computer, TV, microwave and fridge can help minimize exposure.
数字输出有助于抵御无线电和电磁干扰，也就减少了安装在电脑显示器上的麦克风的音频问题。
Digital output helps protect against radio and electromagnetic interference, which can cause audio problems with microphones mounted on computer displays.
接保护地线，主要是减少试样击穿时对周围产生的较强的电磁干扰。
The protective earth wire is mainly to reduce the strong electromagnetic interference generated by the breakdown of the sample.
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