One of the big disincentives to placing weapons in space has been the technical difficulty and cost of such an enterprise.
一直以来,在太空器的主要障碍之一就是技术难度以及该项业的高昂成本。
One of the big disincentives to placing weapons in space has been the technical difficulty and cost of such an enterprise.
一直以来,在太空器的主要障碍之一就是技术难度以及该项业的高昂成本。
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