The instrument should be calibrated in an area free of vibration or stray magnetic fields such as power lines, generators, or welding equipment.

仪器校准应在无振动区域以及无发电机，焊接设备等干扰磁场的区域进行。

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The characteristic of stray magnetic field in power transformer is introduced, and used the real calculation example, an analysis and comparing are done.

介绍了电力变压器漏磁场的特点，并以计算实例进行比较分析。

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A gyrocompass or astrocompass can be used to find true north, while being unaffected by stray magnetic fields, nearby electrical power circuits or nearby masses of ferrous metals.

旋转罗盘或星象罗盘能够用来发现真北极，在飘移磁场区域也不受影响，接近于电路或接近于铁元素块。

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The power needed to run such a small chip is so low that it could be done off stray light in a room, or even body heat.

FORBES: BET ON THE HARES

The power needed to operate the device is sufficiently small that it can get all the juice it needs from stray (or transmitted) electromagnetic radiation or miniature solar collectors.

FORBES: Electronic Devices Packaged in Synthetic Skin