According to the total stress-strain tests, the expression of caving step length of roof is validated combining with the observed data.
根据岩石的全应力应变试验，结合现场实际观测数据，对以应变为指标的岩梁断裂步距表达式做了初步验证。
According to the total stress-strain tests, the expression of caving step length of roof is validated combining with the observed data.
根据岩石的全应力应变试验，结合现场实际观测数据，对以应变为指标的岩梁断裂步距表达式做了初步验证。
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