| 释义 |
underhand stoping underhand stoping[′ən·dər‚hand ′stōp·iŋ] (mining engineering) Mining downward or from upper to lower level; the stope may start below the floor of a level and be extended by successive horizontal slices, either worked sequentially or simultaneously in a series of steps; the stope may be left as an open stope or supported by stulls or pillars. |