9视频豆瓣9.1
11视频豆瓣6.3
4视频豆瓣7.6
1视频
9视频豆瓣5.5
13视频豆瓣7.0
一名男子用扳手组装一架小型精密自制无人机的螺旋桨的近景。
Close view of the hands of a man assembling the propellers of a small and sophisticated homemade drone with a wrench.
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