双层船底 [船] double bottom
双层船壳 double hull
双层船体 Double Hull
双层船壳的油轮 double-hulled tanker ; hulled tanker
全双层船壳板 all-round double skins
局部双层船壳船 partial double hull boat
双层船底框架 [船] double-bottom cellular
双层桨座战船 bireme ; biremis ; diera
双层甲板船 tween decker ship ; twin deck vessel ; double decker ; two-decker
这种双层通高的空间是为了给参观者提供欣赏海盗船的不同视角。
This dual level is intended to give visitors different perspectives on the Viking ship displays.
据了解，这间奇特的“海盗船”卧室有索桥、岗亭、双层隐形滑道、铁牢房甚至一条通往贮藏室的绳梯。
The special bedroom features a rope bridge, crow's nest, a two-storey hidden slide, wrought-iron jail cell and even hidden rope ladder access to the closet.
船体线型采用优化设计的深v型，在风浪中航行性能极佳，同时采用双层底结构，可确保全船进水不沉。
In addition, the hull is double bottom construction, which ensures the boat inflated when the water entered the boat.
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