On centerboard sailboats, the centerboard functions like a keel to keep the boat from being blown sideways.
在使用活动龙骨的帆船上，活动龙骨的功能和固定龙骨一样，是防止船只被吹打得侧晃。
The keel of the boat which struck us came into the boat, on the right side. We could see the writing and details on the cargo ship.
这位工作人员还说，碰撞事故发生后客轮上的乘客可以看到撞到船上的货轮的龙骨。
All sailboats need a keel of board for this reason: the narrow, flat surface of the board or keel produces little drag when the boat moves forward but resists motion sideways.
所有的帆船都为了这个理由需要某种龙骨：狭窄平滑的龙骨表面对于帆船的前行几乎没有阻力，但却能很好抗拒侧移力。
The depth of a boat in the water, measured from the waterline to the lowest section of the keel.
帆船进入水的深度，从水平面到龙骨最低处测量。
If the centerboard is weighted, then it also provides weight low in the water, like a keel, to help keep the boat upright (although not as much weight as a fixed keel can supply).
如果选用了带负重的活动龙骨，那么它和固定龙骨一样提供水下的重量负荷，以使得船只能够保持直立(尽管它无法提供和固定龙骨一样大的重量)。
A keel also provides weight low under the water to lower the boat's center of gravity below the waterline, which is needed so that the boat bobs back upright if knocked over by wind or waves.
龙骨同时也增加了船只的底部重量，从而将船只重心降到吃水线之下，而这对于船只在被风浪打翻时能够得以及时回正是十分必要的。
For example, in this photo the boat on the left has a fixed keel, while the boat on the right, of about the same size, has a centerboard.
例如，在上图中，左侧的帆船使用的是固定龙骨，而右侧相近尺寸的帆船则装备的是活动龙骨。
The keel helps the boat resist the leeward force of the wind and provides stability against excessive heeling.
龙骨帮助船只抵御背风力(leeward force of the wind)，并稳定过度倾侧。
The keel of the boat was made of steel.
这船的龙骨是钢制的。
And the connection strength of the bilge keel of FRP fishing boat was obtained based on the ripping tests of 4 FRP frames.
并根据4种玻璃钢骨架的剥离试验数据，计算出玻璃钢渔船舭龙骨的连接强度。
And the connection strength of the bilge keel of FRP fishing boat was obtained based on the ripping tests of 4 FRP frames.
并根据4种玻璃钢骨架的剥离试验数据，计算出玻璃钢渔船舭龙骨的连接强度。
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