单词	plimsoll mark
释义	plimsoll mark noun also plimsoll line Usage: usually capitalized P Etymology: after Samuel Plimsoll died 1898 English leader of shipping reform 1. : a circle intersected by a horizontal line that is marked amidships on the sides of a seagoing cargo ship to represent the summer load line and is accompanied by letters indicating the authority under which the ship is registered : the minimum summer freeboard mark — compare draft mark 2.  a. : a set of load-line markings on a seagoing cargo ship including the Plimsoll mark and the graduated load lines beside it  b. : load line 2 [Plimsoll mark: TF tropical freshwater mark; F freshwater mark; T tropical load line; S summer load line; W winter load line; WNA winter load line, North Atlantic]
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