Objective To explore field magnetic resonance imaging (MRI) diagnostic value of knee injury.

目的探讨膝关节外伤后低场磁共振成像（MRI）的诊断价值。

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Archaeologists also may locate buried remains by using such technologies as ground radar, magnetic-field recording, and metal detectors.

考古学家们还可能利用地面雷达、磁场记录和金属探测器等技术来定位被掩埋的遗骸。

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Geomagnetic activity, the natural variations in Earth's magnetic field, it fluctuates in 11-year cycles.

地磁活动是地球磁场的自然变化，其波动周期为11年。

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He says that, when researchers changed the magnetic field, the butterflies were no longer able to find their way.

VOA: special.2010.04.27

That is we make animation file when you put the current to the coil of the field, getting established magnetic field.

即通过制作动画效果,当你将电流,输送到线圈上，形成磁场。

麻省理工公开课 - 媒体、教育、市场课程节选

who conducted the experiment of hydrogen emission spectrum in a magnetic field.

塞曼做了一个,磁场中的氢原子光谱实验。

麻省理工公开课 - 固态化学导论课程节选

For example, nobody knows where the moon's weak, erratic magnetic field came from: was the moon bombarded by magnetic meteors, or did it once have its own strong internal magnetic field that has decayed over time?

ECONOMIST: Divining water

Creating a magnetic field using electricity is easy: an electric current flowing in a wire generates a magnetic field around that wire.

ECONOMIST: Recreating the planet's magnetic field in a laboratory

In accordance with an example embodiment of the present invention, an apparatus comprises: a material attachable to skin, the material capable of detecting a magnetic field and transferring a perceivable stimulus to the skin, wherein the perceivable stimulus relates to the magnetic field.

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