The risk of classification of colliery and grade of operation unit was calculated with prediction of lost money and human casualty in accidents.
通过预测事故经济损失和人员伤亡，确定生产矿井的危险性类别和生产单元的危险性分级。
The risk of classification of colliery and grade of operation unit was calculated with prediction of lost money and human casualty in accidents.
通过预测事故经济损失和人员伤亡，确定生产矿井的危险性类别和生产单元的危险性分级。
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