| 单词 | roadheading |
| 释义 | > as lemmasroadheading roadheading n. Mining the process of excavating a rock face in a mine, with either hand tools or mechanical cutting equipment. Frequently attributive. ΘΚΠ society > occupation and work > industry > mining > [noun] > other specific types of mining shoading1778 nuggeting1852 placer mining1852 reefing1859 hydraulic mining1873 stripping1874 drift mining1877 gouging1877 hydraulicking1880 open-working1881 strip mining1935 horizon mining1947 roadheading1969 1969 New Scientist 27 Feb. 444/1 This method reduces the manpower needed for roadheading by about half. 1969 New Scientist 27 Feb. 444/1 These four tunnels are being driven by the four roadheading machines. 2001 Mining Mag. (Nexis) Oct. 204 The main emphasis will be on profitability and productivity increase; operating experience (blasting, roadheading); planning, organisation and logistics. < as lemmas |
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