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Space debris mitigation has become an international custom for international space activities.
空间碎片减缓已经成为国际空间活动中一项国际习惯法规范。
youdao
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Space debris mitigation has become an international custom for international space activities.
空间碎片减缓已经成为国际空间活动中一项国际习惯法规范。
youdao