It is obvious that early analyzing of strength of transverse frame structure has significant importance in designing the midship section.
由此可见在中剖面设计阶段，及早开展横向肋框的强度分析是十分有意义的。
After optimization of the midship section structure, the paper researches on optimum design of large crude oil tanker transverse bulkhead structure based on DNV rules.
在中剖面结构优化设计的基础上，本文研究了基于DNV规范的大型油船横舱壁结构优化设计。
The paper optimizes the midship section structure of large crude oil tanker based on DNV rules.
本文研究了基于DNV规范的大型油船中剖面结构优化设计。
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