单词 | coal drop |
释义 | coal drop/ˈkəʊl drɒp/noun 1A piece of machinery used to lower a coal wagon from a wharf to the level of a hatchway on a ship so that the coal may be deposited directly into the hold. Now chiefly historical. 2An apparatus for depositing coal into a storage place, container, etc., usually by means of a slide or chute; especially a structure consisting of an elevated section of railway track allowing coal to be dropped directly out of the bottom of a truck or hopper into a receptacle positioned below. OriginMid 19th century; earliest use found in Railway Times. From coal + drop. |
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