mine prop的用法和樣例：
例句
- As a result,the short hole shrinkage method with flat bottom structure was employed to mine the stope firstly,then stoping ore pillar by medium length hole caving method.
后溝金礦採用平底結構淺孔留礦法先採礦房，後用中深孔崩落法回採礦柱，經兩年多的生產實踐，取得較好的技術經濟指標。 - Therefore, the mining technology of the permanent waterproof jambs in Kangjiawan Mine is entirely feasible using the backfilling method with the parameters above.
因此，在滿足以上研究參數條件下，採用充填法對康家灣永久防水礦柱進行回收是完全可行的。
