US space navigation spokesman said, the massive fragment brought by the collison scattered in space, which may have slight affection on the international space station.

美宇航局发言人说，两颗卫星相撞产生的大量碎片散落到太空中，这对国际空间站可能会产生轻微影响。

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It enables navigation to the fragment root, and supplies some default properties so that the custom provider does not have to implement them.

可在片段根目录中进行巡览并提供某些预设属性，让自订提供者不需要进行实作。

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