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Propeller for Very Large Crude Oil Carrier（VLCC）. 超大型油轮（VLCC）螺旋桨。
The weight of large crude oil carrier midship section structure is minimized with genetic algorithm based on DNV rules. 本文采用遗传算法对大型油船中剖面结构进行了基于DNV规范的优化。
The weight of midship section structure for large crude oil carrier is minimized based on DNV rules. 摘要基于DNV规范对大型油船中剖面结构进行了优化设计。
The characteristics of the structural optimum design of LCC (Large Crude Oil Carrier) are summarized. 摘要综述了大型油船结构设计的特点；
The optimization of the midship section structure of a large crude oil carrier with genetic algorithm based on DNV rules is introduced. 摘要采用遗传算法对大型油船中剖面结构进行了基于DNV规范的优化。
Results of example show that the value of objective function decreases by 5.54%, indicating good validity of the model and the advanced RDQA for large crude oil carrier structure optimization. 算例显示优化后纵向构件总重量减轻了5.;54%25，表明所建的优化模型和改进的相对差商法在大型油船结构优化方面具有良好的有效性。
Several largest shipping corporations in-crease their transport ability through enlarging the tonnage of original fleet and building new oil tanker,especial-ly very large crude oil carrier(VLCC). 国内几大航运巨头纷纷加大原油船队的吨位，建造新油轮特别是超级油轮(VLCC)，以提高自己的运输能力。
Optimization of Transverse Structures of Large Crude Oil Carrier 大型油船横向结构优化设计
VLCC Very large crude oil carriers 甚大型油轮
Optimization of Midship Section Structure of Large Crude Oil Carrier Based on Genetic Algorithm 大型油船中剖面结构优化设计的遗传算法
Keywords large crude oil carrier,lighting by double sides,restrictions,handling methods, freeboard difference; 大型油轮;双舷过驳;限制条件;操作方案;干舷差;
large crude oil carrier 大型油船
very large crude oil carrier 特大型油轮
ultra large crude oil carrier 超大型油轮
This paper researches on optimum design of large crude oil tanker structures with mathematical programming, aiming at the minimum weight of the cargo tank amidships. 本文采用数学规划的手段,对大型油船中部舱段结构进行了以减轻结构重量为目标的优化设计研究。
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 plant converts crude oil into gasoline. 这家工厂将原油加工成汽油。
China is a country rich in crude oil. 中国是一个原油丰富的国家。
The tanker took on 200,000 barrels of crude oil. 油轮装载了二十万桶原油。
The country exports lots of crude oil. 这个国家出口大量原油。