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。
2
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。
3
The paper optimizes the midship section structure of large crude oil tanker based on DNV rules.