未支护顶板 unsupported back
木支护顶板 timbered back
护顶钢板 steel strap
顶板支护布置方式 roof support pattern
顶盖护板 [车辆] roof inner shield
纵护顶背板 [矿业] roof stringers
护墙板压顶 [建] wainscoting cap
护壁板压顶线 dadocapping
护壁板顶木条 dado rail
顶棚侧护板 canopy side guard
护顶板
Roof guard
以上为机器翻译结果,长、整句建议使用 人工翻译 。
阐述了哈拉沟煤矿主采煤层顶板的赋存特征,以现场监测、现场调研为手段,分析了煤层开采、护巷煤柱尺寸及地下水对煤巷顶板稳定性的影响,为今后煤巷顶板稳定性分类及合理支护提供依据。
By taking the on-site monitoring and research as a tool, the influence of coal mining, coal pillar size and underwater on the roof stability of coal roadways is analyzed.
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