最后，根据轨道衰减的影响，它开始播在地球表面的遗体。

Eventually, under the influence of orbital decay, it began to strew its remains across the Earth's surface.

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这样就改变了GPS信号的传播，减小了地球底层轨道上空间碎块的衰减速度。

This altered the propagation of GPS signals and slowed the rate of decay of space debris in low Earth orbit.

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轨道会渐渐衰减，这是因为卫星与为数甚少的空气分子之间相互碰撞所致。即使是在通常被划归为“外太空”的高度上也还找的到这些分子。

Orbits gradually decay as a result of collisions with the small number of air molecules found even at altitudes normally classified as "outer space".

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