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单词 sublevel
释义

sublevel


sublevel

(ˈsʌbˌlɛvəl) na level between other levels in a mine

sublevel


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.
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更新时间:2024/11/11 16:39:53