In this paper purpose performance and effect of magnetic belt conveyors and introduced.

介绍磁力式皮带速度检测器的作用、性能和使用效果。

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But some astronomers always suspected that the remaining antiprotons must become trapped by the Earth's magnetic field, forming an antiproton radiation belt.

但是一些天文学家一直怀疑，那些剩下的反质子一定被地球磁场捕获，形成一条反质子辐射带。

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This is a specially designed magnet that allows an operator to steer the capsule around using external magnetic fields generated in a belt worn by the patient when he is being examined.

它是由一个特制的磁体制成，患者接受检查时会佩戴一条带子以产生一个外部磁场，这样医生就可以通过这个外部磁场来控制胶囊的方位。

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The radiation belt, which contains "two concentric rings of charged particles trapped by Earth's magnetic fields" doesn't affect current astronauts going to and from space because they are moving too fast to be hit by the radiation.

ENGADGET: Space elevator ride may kill humans due to ionizing radiation