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  • 匿名
关注:1 2013-05-23 12:21

求翻译:From evaluation indexes, for these mines whose damage degree of mining subsidence is serious, disturbance coefficients are almost close to 1, which show that underground mining has disturbed the overlying rock seriously. The ratios of depth to thickness all close to or lower than 50, and the surface shows discontinuous是什么意思?

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From evaluation indexes, for these mines whose damage degree of mining subsidence is serious, disturbance coefficients are almost close to 1, which show that underground mining has disturbed the overlying rock seriously. The ratios of depth to thickness all close to or lower than 50, and the surface shows discontinuous
问题补充:

  • 匿名
2013-05-23 12:21:38
从评价指标,这些矿山的开采沉陷损害程度是严重的,干扰系数几乎接近1,这表明,地下采矿,严重扰乱了上覆岩层。深度厚度都接近或低于50,表面的比例,显示出连续的损害。宽度,深度的比例几乎是大于1,反映地面沉降被切断型,及损害程度是非常严重的。沉降系数位于0.7左右,这充分反映了采矿方法(长壁开采)和屋顶的特点
  • 匿名
2013-05-23 12:23:18
  • 匿名
2013-05-23 12:24:58
  • 匿名
2013-05-23 12:26:38
  • 匿名
2013-05-23 12:28:18
 
 
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