Drag onto the page to add a stretchable road segment.
拖到绘图页后,可以添加可延长路段.
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A kind of spring energy accumulation typed stretchable mechanism used in aerobat was designed.
摘要设计了一种飞器用弹簧储能式空间可伸展机构.
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A kind of energy accumulation typed stretchable mechanism used in aerobat was designed.
设计了一种飞行器用弹簧储能式空间可伸展机构.
互联网