单词 | opencut |
释义 | opencut [`ō·p·ǝn¦kǝt] CIVIL ENGINEERING An open trench, such as across a hill. MINING ENGINEERING 1. To drive headings out, or to commence working in the coal after sinking the shafts. 2. To commence longwall working. 3. To increase the size of a shaft when it intersects a drift. |
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