MRI USES a powerful magnetic field, low intensity radio-frequency pulses, and data-processing software to create detailed images of soft tissue, muscles, nerves, fat and bones.

MRI是利用强大的磁场，低强度的无线电频率脉冲和数据处理软件来得到软组织、肌肉、神经、脂肪和骨骼的精细的图像。

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Based on the spatial distribution of magnetic dipole, the equation of the normal component of leakage magnetic field on the tube surface under low-intensity field was derived.

根据磁偶极子空间磁场分布，导出了在外部垂直方向弱磁场下管状工件表面细长缺陷产生的弱磁场法向分量的计算公式。

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Objectives to investigate intensity of extremely low frequency magnetic field (ELFMF) emitted from cathode-ray tubes (CRT) of monitors in various directions and to find ways to avoid its influence.

目的研究电脑阴极射线管显示器正前方不同距离和不同方位的极低频磁场(ELFMF)强度，就如何减少ELFMF的影响提出初步建议。

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