| 单词 | open-pit |
| 释义 | > as lemmasopen-pit open-pit adj. Mining (chiefly North American) = opencast adj. ΘΚΠ society > occupation and work > industry > mining > [adjective] > method of mining open cut1869 underhand1877 open-pit1892 opencast1896 shortwall1912 1892 Harper's Mag. Apr. 697/1 Open-pit mining is largely followed in this district. 1959 Times 12 June 17/4 The new technique of open-pit borate mining. 1993 J. Pournelle & S. M. Stirling Prince of Sparta 6 There was an openpit rare-earth mine cut back into a smooth green hill..and a kilometer of railway down to the loading docks. < as lemmas |
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