The structure was corresponded with the distribution of ore vein, from bottom to top, there is inlayer ...

其成矿机制与地壳扩张形成深大断裂及挤压应力形成逆掩断层和层间裂隙等构密不可分。

For unadjustable ones, the exit may be the best choice.This paper also studied the relevant barrier, ways and policies.The last part can be viewed as a case discussion.

而对不可调整升级型衰退业本文则做了退建议，并对退碍、退方式及顺利退政策保进行了论述。