巨厚松散层
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Very thick loose layer
以上为机器翻译结果，长、整句建议使用 人工翻译 。
地层移动角参数对巨厚松散层矿井的建筑物保护煤柱尺寸影响很大，经济潜力十分巨大。
The displacement Angle of strata has a great bearing on the size of coal pillar for protection of buildings on very thick unconsolidated layers, and has a great economic potentials.
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