The dimension analysis method was applied to determine the major factors affecting the flow characteristics.
对交汇口流动的各种影响因素进行了量纲分析，确定表征流动特性的主要物理量。
According to the accuracy requirements of the analysis with the model dimension, we use the precision casting method to make the models.
应分析精度对模型尺寸的要求，采用了精密浇铸的方法制作模型。
A novel method about two dimension Fourier frequency analysis is proposed in order to obtain high radial rotate precision.
为了改善高速磁浮主轴的径向回转精度，该文提出了二维傅里叶频率分析的新方法。
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