| 单词 | stream-line sail |
| 释义 | > as lemmasstream-line sail stream-line sail n. (see quot. 1920). Π 1920 Glasgow Herald 16 July 7 The ‘stream line sail’..is a stream-line strip of canvas, a lacing device extending from the boom to the gaff along the mast, and calculated to prevent a vacuum or back wind by plugging up the open space of six inches or so that always extends beneath the mainsail and the mast from top to bottom. It makes practically a solid sail from the mast to the outer edge, and..the result aimed at..is..the decreasing of the wind resistance. < as lemmas |
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