the main technology to realize high production and high efficiency in abroad is fully mechanized long-wall mining for a single seam or room-and-pillar mining.
国外高产高效矿井建设是以单一煤层长壁和房柱式综合机械化为主要开采技术。
from now on it has not synthetic mechanized mining technique and equipment that is high production and high efficiency with great tilt angle & 「two -hardening」 coal seam.
前言: 「两硬」条件大倾角煤层目前还没有现成的高产、高效综合机械化采煤工艺和总体配套技术设备。
traditional mts cannot meet the needs for high production and high efficiency of fully mechanized coal mining face due to its inherent defects.
由于传统移动变电站自身的固有缺陷,远不能满足现代化煤矿工作面高产高效运行的需要。
stability control of the head faces top-coal is one of the key techniques of realizing high production and high efficiency to coal mining in fully mechanized top-coal caving face.
大倾角松软煤层综放面实现高产高效的关键之一是端面顶煤稳定性控制。