keel
keel 英 [ki:l] 美 [kil]
vt. 给…装龙骨；把…翻转 n. 龙骨；平底船；龙骨脊 vi. 翻倒；倾覆
进行时:keeling 过去式:keeled 过去分词:keeled 第三人称单数:keels 名词复数:keels
- The keel of a boat is the beam that runs the length of the hull — the body of the boat — and can extend vertically into the water to provide stability.
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- vt. 给…装龙骨；把…翻转
- n. 龙骨；平底船；龙骨脊
- vi. 翻倒；倾覆
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1. But there is a wide range of boats from 12 to about 25 feet with either a fixed keel or a centerboard.
但12到25英尺左右这一长度范围的帆船则既有使用固定龙骨，也有使用活动龙骨的。
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2. The daggerboard has the same function, but rather than swinging down, it is inserted like a blade down through a slot in the hull to protrude like a thin keel below the hull.
这种活动披水板的功能和活动龙骨一致，但它并非旋转到船底，而是像刀刃一样沿着船底的某个轨迹插下去，像一条薄龙骨那样凸出于船底之下。
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3. Based on the advantage of former keel stairs,this stairs adopt new extrusion craftwork; and the structure of the stairs are more firm and safe. This product has been awarded many national patents.
该楼梯在保持原有龙骨楼梯优点的基础上，采用了新的挤压枝术工艺，使楼梯的结构更加的坚固、安全，该产品曾荣获多项国家专利。
- keel (n.) "lowest and principal timber of a ship or boat," mid-14c., probably from a Scandinavian source (compare Old Norse kjölr "keel," Danish kjøl, Swedish köl), which according to Watkins is from Proto-Germanic *gwele- (3) "to swallow" (see gullet).
- keel (v.1) of a ship, "turn keel-up" (intransitive), 1828, from keel (n.). To keel over is to "capsize" (1829), hence generally "tumble, fall" (1833), from the nautical image of a ship turning keel-up, an extended sense first in sporting, in reference to shot game. Related: Keeled; keeling.
- keel (v.2) "to keep cool, make cool," Middle English kelen, from Old English celan "to cool," from Proto-Germanic *koljan "to cool," from the same source as cool (adj.). The form kele (from Old English colian) was used by Shakespeare, but later it was assimilated with the adjective form into the modern verb cool. Cognate with Dutch koelen, Old High German chuolen, German kühlen.
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