| 单词 | monkey drift |
| 释义 | > as lemmasmonkey drift monkey drift n. Mining a small drift or passage dug for purposes of prospecting or ventilation. ΚΠ 1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 157 Monkey-drift, a small prospecting drift. 1920 A. H. Fay Gloss. Mining & Mineral Industry 448/1 Monkey drift, a small drift driven in for prospecting purposes, or a cross-cut driven to an airway above the gangway. 1998 D. Wixson Worker-Writer in Amer. ii. 31 ‘Monkey Nest’..was a locution bestowed by the miners on the Eagle mine, probably based upon the mining term ‘monkey drift’, a ventilation shaft, joined with the pejorative meaning suggesting the nature of the work. 2004 J.-P. Kurtz Dict. Civil Engin. 395/1 Belgian practice,..which consists in carrying out a center monkey drift in the upper section (pilot drift), which is then widened by side fellings. < as lemmas |
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