单词 | sublevel |
释义 | sublevel [¦sǝb`lev·ǝl] ATOMIC PHYSICS See <<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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