seaming

• Way of exhausting gas from low permeability thin seam
  低透气性薄煤层瓦斯抽放方法
• The weld seam tracking technology based on machine vision
  机器视觉型焊缝跟踪技术
• The estimation of deposit thickness for the flat seams
  近水平煤层群矿床厚度的估计
• Construction technique of deep - drill of outburst coal seam
  突出煤层深钻孔施工技术
• The host characteristics of zhujiajie well field coal seam
  朱家街井田煤层赋存特征
• Application of laser - psd sensor in the seam tracking
  传感器在焊缝跟踪中的应用
• Characteristics and development of thin seam shearers
  薄煤层采煤机的技术特点及研制
• A torn or split place , especially along a seam
  裂口破损或撕开的地方，尤指沿缝合处
• Mining area tunnel arrangement in high gas coal seams
  高瓦斯煤层采区巷道布置
• Study on roof control in shallow seam longwall mining
  浅埋煤层长壁开采顶板控制研究