This paper describes a method for carrying out self-propulsion test of ship model in a gravity tank and the means of measurement.
本文介绍了在重力式水池中进行船模强迫自航试验的方法及所采用的测试手段。
On the basis of studying theoretical model with the above methods, we have introduced a multiple-cut method for identifying the regional gravity field and the local field.
在对上述方法进行理论模型考察的基础上，我们提出了一种划分重力区域场与局部场的多次切割法。
A grain logistics center location model based on extension theory is put forward, which applies extension decision method, cluster analysis and gravity method together.
综合运用可拓决策方法、聚类分析、重心法，建立了基于可拓理论的粮食物流中心选址模型。
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