After contrast and analyse,it was found that wall-hung spiral chute is ascendant and oecumenical than wall-laid spiral chute.
通过对比得出了壁挂式相对嵌入式螺旋溜槽的优越性及技术经济效果。
After contrast and analyse,it was found that wall-hung spiral chute is ascendant and oecumenical than wall-laid spiral chute.
通过对比得出了壁挂式相对嵌入式螺旋溜槽的优越性及技术经济效果。
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