Finally, by using the single ship optimization model, the ship type on the main line is chosen while the fleet deployment problem is simplified into linear programming.
最后通过建立单船优化模型，对主要航线上船型进行优选；采用线性规划法，将船队规划问题简化为线性规划问题，以年总营运费用最小为目标函数建立船队规划模型。
参考来源 - 沿海成品油船船队规划研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Thirdly, the economics of seaworthiness ship type was analyzed.
再次，对滚装客船船型进行经济性分析。
In each category, ships are organized by ship type and size class.
在每个种类中，船是按型号和大小来排序的。
Nowadays SWATH ship becomes an important ship type of high performance due to it's excellent seakeeping feature.
小水线面双体船因其优异的耐波性能而成为当前重要的高性能船型之一。
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