| 释义 |
nonselective mining nonselective mining[¦nän·si′lek·tiv ′mīn·iŋ] (mining engineering) Mining methods permitting low cost, generally by using a cheap stoping method combined with large-scale operations; can be used in deposits where the individual stringers, bands, or lenses of high-grade ore are numerous and so irregular in occurrence and separated by such thin lenses of waste that a selective method cannot be employed. |