地球行星也有强大的磁场力。

Planet Earth also has a strong magnetic force.

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由磁场生成的力，我不确定其符号。

And the force caused by the magnetic field, I am never sure about the sign.

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磁场对运动电荷的作用洛伦兹力。

The function magnetic field impose on the electric charge.

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这样不但对磁系表面磁场影响小，而且对磁系有足够强的包裹涨紧力，效果显著。

Such not only of magnetic field is the surface of magnetic effect is small, and are strong enough package when tight force, the effect is remarkable.

youdao

这样不但对磁系表面磁场影响小，而且对磁系有足够强的包裹涨紧力，效果显著。

Such not only of magnetic field is the surface of magnetic effect is small, and are strong enough package when tight force, the effect is remarkable.

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