结构新颖，体积小，重量轻，操作方便，机动性强，不受电源环境的限制。
Novel structure, small volume, light weight, easy to operate, the maneuverability is strong, is not restricted by power supply environment.
幸运的是，这个装置尺寸巨大，据说几乎完全缺少机动性，这都限制了它潜在的破坏性。
Fortunately its vast size and almost complete lack of portability reputedly limited its destructive potential.
幸运的是，这个装置尺寸巨大，据说几乎完全缺少机动性，这都限制了它潜在的破坏性。
Fortunately its vast size and almost complete lack of portability reputedly limited its destructive potential.
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