| 单词 | ram-board |
| 释义 | > as lemmasram-board 2. The central plank of a coble, often used as a measure of the length of the boat (see sense 1). More fully ram-board, ram-plank. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > parts of vessels > body of vessel > bottom or part under water > [noun] > keel and kelson > keel > types of sliding keel1797 centreboard1828 bilge-keel1850 ram1851 rocker1859 sidebar keel1869 bar-keel1874 plate-keel1874 bilge-piece1880 fin1885 bulb-keel1893 fin-keel1893 ballast fin1894 bulb-fin1894 plate1895 drop-keel1896 1851 Rep. Comm. Life-boat Models 30/1 Length extreme. 27ft.; length of keel or ram-board, 20ft. 1933 Yachting Monthly Dec. 108/1 The centre plank [of a coble] is called the ‘ram’. 1970 E. J. March Inshore Craft Great Brit. I. iv. 137 The true coble is built up on a ‘ram plank’ not a keel. 1973 W. Elmer Terminol. Fishing iv. 113 The ram denotes the broad central bottom plank in the cobles, which have no keel. < as lemmas |
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