Based on potential flow theory, a numerical method is proposed for predicting the steady and unsteady hydrodynamic performances of puller type podded propulsors.
应用升力面理论涡格法和面元法，建立了拖式吊舱推进器非定常水动力性能的数值计算方法。
According to the relationship between auto correlation function and its spectral density, a new type of decision tree method based on signal analysis theory is proposed in this paper.
该文根据自相关函数与谱密度函数之间的对应关系，提出了一种新的基于自相关函数的决策树归纳学习算法。
In order to choose to offer the economy, practical equipments in numerous equipments, propose asking the method of solving in selecting type of equipment based on grey related theory.
为了在众多的设备中选择出经济、实用的设备，提出基于灰色关联理论的设备选型求解方法。
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