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The invention provides the elevator mechanism with compact structure, low cost and better stability.
本发明提供了一种结构紧凑、成本较低且稳定性较好的升降机构。
youdao
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The invention provides the elevator mechanism with compact structure, low cost and better stability.
本发明提供了一种结构紧凑、成本较低且稳定性较好的升降机构。
youdao