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。
The silvery craft had a teardrop-shaped primary hull supported by a wide wing, with a top mounted cockpit and surprisingly spacious interior.
这艘银色的飞船有一个泪珠形主舱，受宽阔的机翼支撑，驾驶舱安装在顶部，内部出奇地宽敞。
Enveloping the craft are forward and rear-projecting Novaldex shields, which protect the reinforced titanium hull.
该飞船被前后投射的诺瓦尔·德克斯护盾所包裹，护盾保护着增强的钛船体。
Model tests for this hull lines are conducted at different water depth in towing tank, and the effect of shallow water on craft performance is investigated.
针对该型线又进行了不同水深的阻力模型拖曳试验，并根据试验结果讨论了高速艇的浅水效应。
Small craft - Hull construction and scantlings - materials - Steel, aluminium alloys, wood, other materials.
小艇。船体构造和船材尺寸。材料。钢、铝合金及其它材料。
The key problem in the hull form design for a high speed round bilge displacement craft is to select an appropriate afterbody form.
高速圆舭排水艇的船型设计，关键是合理选择尾部线型。
The key problem in the hull form design for a high speed round bilge displacement craft is to select an appropriate afterbody form.
高速圆舭排水艇的船型设计，关键是合理选择尾部线型。
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