空间碎片是人类发射空间实体在外空留下的太空垃圾，其造成空间环境污染是一特殊种类的环境污染问题。
Space debris are space rubbishes which were abandoned by human satellite in outer space. Environmental pollution by space debris is a special kind of environmental pollution.
空间碎片是人类发射空间实体在外空留下的太空垃圾，其造成空间环境污染是一特殊种类的环境污染问题。
Space debris are space rubbishes which were abandoned by human satellite in outer space. Environmental pollution by space debris is a special kind of environmental pollution.
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