double hull construction
常见例句
- Its hull is a double-layer construction with vacuum between the two layers.
杜瓦瓶或称真空瓶就像是保温杯。 它的外层是两层的， 两层之间抽成真空。
glosbe.com - In addition, the hull is double bottom construction, which ensures the boat inflated when the water entered the boat.
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。
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