另外还对多船会遇避碰问题进行了讨论，并建立了最优化数学模型。
Otherwise, we also discuss multi-ship encounter situation in specially and build a mathematical model.
用线性规划的方法建立遂昌湖山林场用材林龄级调整最优化数学模型。
Using the linear programming method, they have set up a mathematic optimization model for adjusting age-grade of timber forest in Hushan Forestry Farm of Suichang, Zhejiang.
本文阐述了两种齿轮连杆机构的优化设计，给出了最优化数学模型和算例。
Optimization of two geared-linkage mechanism design is discussed. Mathematical model and calculating example are given.
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