释义 |
sublevel
sublevel (ˈsʌbˌlɛvəl) na level between other levels in a minesublevel
sublevel[¦səb′lev·əl] (atomic physics) subshell (mining engineering) An intermediate level opened a short distance below the main level; or in the caving system of mining, a 15-20-foot (4.6-6.1-meter) level below the top of the ore body, preliminary to caving the ore between it and the level above. |