| 单词 | ballast keel |
| 释义 | > as lemmasballast keel ballast keel n. a weight attached to or incorporated into the keel of a vessel to serve as ballast; esp. a heavy metal moulding attached to the keel of a sailing vessel. ΚΠ 1823 M. Willoughby Brit. Patent 4806 (1857) 3 The ballast keels..are prolonged,..so as when drawn up to fit the bottoms of the vessels from stem to stern. 1946 Geogr. Jrnl. 107 69 There is a complete description..for finding the centre of gravity so that the ballast keel can be put in the exact right position. 2006 N.Y. Times (Nexis) 30 Dec. d6/1 Mike Golding and Alex Thomson of Britain pulled out in November when Thomson abandoned his vessel..after the ballast keel broke. < as lemmas |
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