long wall face 长壁工作面
heavy duty long wall face 重型工作面
remotely operated long wall face 遥控长壁工作面
long wall face intermission advance 长壁间隔式推进
long wall stopping face 长壁回采工作面
long-wall combined-mining face 长壁综采工作面
During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span.
在综采放顶煤工作面顺槽掘进过程中，由于顺槽煤层顶板松动破碎，并且顺槽采用矩形断面，顶板跨距较大，不利于巷道支护。
It was succeeded in practical application. It is an useful exploration for the roadway stability control of fully-mechanized top-coal caving long-wall face in soft and thick coal seam.
并成功进行了实践应用，为进一步完善松软厚煤层长壁综放工作面顺槽稳定性控制理论技术体系进行了有益探索。
It's easy and useful to control dust and gas with wind-cloth curtains in the bringing back long wall face.
走向长壁后退式开采工作面用风帘控制粉尘和瓦斯简单易行，能够解决生产中的实际问题。
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