名词
中文翻译：船底结构
同义词：
["ship's bottom structure", "ship's stern structure"]
例句：
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1. Thedesign of the port sill structure is crucial for the stability of the ship.
船底结构的设计对于船只的稳定性至关重要。
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2.The port sill structure plays a vital role in preventing leaks during loading and unloading operations.
船底结构在装卸作业中防止泄漏方面起着重要作用。
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3.The port sill structure has been optimized to reduce the weight of the ship and increase fuel efficiency.
船底结构经过优化，以减少船只重量并提高燃油效率。