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单词 rising line
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rising line
rising line n. a curved line on the plan of a ship showing the heights of the floor timbers.
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c1620 Treat. Shipbuilding (modernized text) in W. Salisbury & R. C. Anderson Treat. Shipbuilding & Treat. Rigging (1958) 15 The rising lines must neither be too high nor too low, nor the narrowing lines too lank nor too full, nor the sweeps of the bend too round or too straight.
1691 T. Hale Acct. New Inventions p. x Whereas all Ships before..were built by rising Lines,..he built that by Horizontal ones.
1769 W. Falconer Universal Dict. Marine Rising line, a name given by shipwrights to an incurvated line, which is drawn..to determine the height of the ends of all the floor-timbers.
1771 Encycl. Brit. III. 585/2 By this and a hollow mould, all the timbers are formed, as far as the rising-line.
1841 R. H. Dana Seaman's Man. 102 Dead-rising, or Rising-line, those parts of a vessel's floor, throughout her whole length, where the floor timber is terminated upon the lower futtock.
1989 B. Lavery Nelson's Navy iii. i. 59/1 (caption) Sheer plan of a ship, showing the use of the rising line of centres of floor sweeps, and the length on the gundeck.
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更新时间:2024/9/21 2:47:50