• After contrast and analyse, it was found that wall-hung spiral chute is ascendant and oecumenical than wall-laid spiral chute.

    通过对比得出壁挂式相对嵌入式螺旋溜槽的优越性技术经济效果。

    youdao

  • After contrast and analyse, it was found that wall-hung spiral chute is ascendant and oecumenical than wall-laid spiral chute.

    通过对比得出壁挂式相对嵌入式螺旋溜槽的优越性技术经济效果。

    youdao

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