Roof control is key management of opening up coal seam with potential outburst in crosscut.
顶板管理是石门揭露突出煤层过程中的管理重点。
Tube can be with seam or without.
管子可以是有缝的或是无缝的。
The position of seam center was got with template match algorithm.
利用模板匹配算法获取焊缝中心位置。
The position of seam center was got with template match algorithm.
利用模板匹配算法获取焊缝中心位置。
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