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单词 fast wall
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fast wall
fast wall n. Mining Obsolete (in a mine) a wall in which partitions or doors used to direct airflow are located.
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1849 G. C. Greenwell Gloss. Terms Coal Trade Northumberland & Durham 25 Fast Wall, a sheth wall; the wall in which, at the top or bottom of a course, the bearing up or bearing down stopping is placed.
1854 Leics. Mercury & Gen. Advertiser Midland Counties 4 Mar. He would get a piece off the fast wall close to where he was.
1920 A. H. Fay Gloss. Mining & Mineral Industry 261/1 Fast wall, the wall in which bearing doors are placed.
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更新时间:2024/11/11 0:46:00