butt-jointed seam with strap [建] 夹板对接缝
coal seam with gas 含瓦斯煤体
coal seam with high gas 高瓦斯煤层
coal seam with dirt band 含夹矸层煤层
thick seam with steep dip 急倾斜较薄厚煤层
seam with potential outburst 突出煤层
butt jointed seam with strap 搭板对接缝
thick seam with shallow depth 浅埋厚煤层
Double seam with basic design 双重接缝和一些基础设计
Center back seam with offset hem.
中心偏移下摆焊缝背面。
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。
Effects of welding parameters on the penetration of austenitic stainless steel A-TIG weld seam with the home-made active flux were carried out.
利用自制的活性剂,考察了焊接工艺参数对奥氏体不锈钢A-TIG焊焊缝熔深的影响。
应用推荐