Sonic logging has been seldom applied in average velocity field, owing to some limits of data collection and defection of sonic logging.
在平均速度场研究中很少利用声波测井资料，这是因为声波测井资料本身的缺陷所致。
By means of study on velocity field constant in flue, a method used to measure average velocity of flue gas was presented.
通过对烟道“速度场常数”的研究，提出了利用速度场常数监测烟道烟气平均流速的方法，同时研制出速度场常数自动检测装置。
The average extruded height and the grid distortion of theory and experiment agree well when using the proposed velocity field.
当采用本文提出的速度场时，平均挤压高度与网格变形的理论模拟计算与实际情况相吻合。
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