However, CMM data can not be used directly in the modeling because of the orientation, dimension, obstruction handling, superficial physical property and distortion of the products be measured.

然而，受被测产品的定位、尺寸、障碍处理、表面物理属性、变形等因素的影响，三坐标测量数据不能直接用于逆向造型。

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The fractal dimension of the fluctuations are lower than 1.5 in all flow regimes besides the annular flow with great gas superficial velocity.

实验发现环状流区高气速时的压差波动分维数大于1.5 ，在其它流型内都小于1.5。

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