The result indicates that, due to the diurnal variation of the geomagnetic field, the environmental magnetic field is hard to be measured directly at the distance of more than 300m away from the railway.

  • 实测结果表明,由于离开铁路300m以远的环境磁场受地磁场日变化的影响已经无法直接准确获得,因此用理论方法计算显得十分重要。

  • 互联网摘选 2025-01-19 23:23:33

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