英汉词典

1.The centerboard can be raised to decrease displacement to allow the boat into shallower water - and it should swing up and back if it hits the bottom when sailing with it down.

当船只需要进入浅水区域时，活动龙骨板可被提起，以减小船底深度——即使不将其提起，它在船只行驶中触碰到水底时也会来回上下摆荡。

2.Finally, some historic craft have leeboards instead of centerboards; these boards, mounted outside the hull on both sides, can be pivoted down like a centerboard to resist leeward motion.

最后，一些历史上著名的船只使用下风板(leeboard)取代活动龙骨板；这些下风板悬挂在船只底部的两侧，可以像活动龙骨板一样被放下来以抵抗侧向晃动。

3.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。

4.Most centerboard boats can be trailered and easily launched and hauled out on boat ramps (larger centerboard boats may require deeper ramps).

大部分活动龙骨船只可以被拖车运载，并很容易通过船舶下水滑道(boatramp)放入水中(当然，大型的活动龙骨船可能需要使用更深的滑道)。

5.A popular trailerable centerboard sailboat is the MacGregor 26, which with its water ballast has the advantages of centerboard boats but not all the disadvantages.

MacGregor26是一艘很流行的可拖载的活动龙骨帆船，它自带的水压载系统(water ballast)使其具有活动龙骨帆船的所有优点，并避免了部分缺点。

6.The centerboard usually hangs down below the hull from a pivot at one end.

活动龙骨通常悬挂在船底之下的某个旋轴上。

7.Shallow draft centerboard vs. deep fixed keel - trailerable vs. launched by boatyard.

浅吃水的活动船板帆船vs深吃水的固定龙骨船？ 可用拖车载运的船 vs 要拴在船坞上的船？