| 单词 | coach screw | 
| 释义 | > as lemmascoach screw   coach screw  n. a large screw with a square or (in later use) hexagonal head, which is turned with a spanner. ΘΚΠ society > occupation and work > equipment > building and constructing equipment > fastenings > 			[noun]		 > screw > other types of screw wrench1552 needle screw1663 female screw1667 stop-screw1680 male screw1682 wood-screw1733 right and left handed screw1738 screw eye1787 claw-screw1795 screw shaft1818 union joint1819 union screw1820 right-and-left screw1821 binding-screw1828 coach screw1874 lag bolt1893 grub-screw1903 Allen screw1910 multithread1921 self-tapper1949 1808    Enquirer 		(Richmond, Va.)	 26 Oct. 		(advt.)	  				Tinn'd inlets and flat sets, square head coach screws, &c. 1930    Engineering 20 June 787/3  				Drills and appliances for fixing coach screws in sleepers. 2004    M. Crossman  & J. Simm Man. Use of Timber in Coastal & River Engin. viii. 181  				The coach screws holding down the decking were countersunk. < as lemmas | 
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