例句 /

In this paper, based on the theory of extenics, the matter-element model for the stability evaluation of stope roof of the underground mine is established and the stability of No. 92 orebody in TongKeng mine of DaChang is evaluated.

In this paper, based on the theory of extenics, the matter-element model for the stability evaluation of stope roof of the underground mine is established and the stability of No. 92 orebody in TongKeng mine of DaChang is evaluated.

利用该理论建立了地下矿山采场顶板稳定性评价的物元模型,对大厂铜坑矿92号矿体实际采场顶板稳定性进行了评价。