单词 | crawling-board |
释义 | > as lemmascrawling-board crawling-board n. (see quots.). ΘΚΠ society > occupation and work > equipment > building and constructing equipment > [noun] > crawling-board for roofing crawling-board1901 1901 Daily Chron. 25 Nov. 7/3 A crawling-board used on a roof in connection with a ladder. 1902 Law Rep.: King's Bench Div. 1 494 A crawling-board, which was a contrivance ordinarily used in the repair of roofs, and consisted of a wooden plank about 18 to 20 feet long and 10 inches wide, across which were nailed transverse pieces of wood. < as lemmas |
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