velocity uniformity

The relative velocity function of the workpiece to the abrasive disk is obtained through kinematic analysis, the material removing function and the lapping uniformity function are deduced based on Preston equation.

在Preston方程基础上，建立了材料去除函数和研磨均匀性函数。

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Precision seeder; Sensor; Seed spacing uniformity; Velocity measurement; Anti-dust capability;

精密播种机；传感器；排种均匀度；速度测量；抗尘性能；

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Based on velocity uniformity in the outlet, the optimal elevation angle has been determined.

根据出口速度均匀性，确定了最佳仰角。

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Based on the three-dimensions transient temperature distribution model, the paper analyzes the effects of different combination of laser power and scanning velocity on the hardened case's uniformity.

以三维瞬态温度场分布模型为基础，对激光相变硬化中不同激光功率和扫描速度组合对硬化层分布均匀性的影响进行了理论研究。

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Main contents of this thesis are described as following: 1. Builded up experimental test installation suitable for airfoil blowing experiment, to make sure of good flow conditions, good uniformity of velocity and low turbulence.

本文主要研究内容和研究成果如下：1、搭建了适合翼型吹风实验的实验台，保证翼型良好的来流条件，使其具有良好的速度均匀度和较低的速度湍流度。

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Using two-dimensional flow-pollutant mathematic model, the uniformity of the flow-velocity, area of the backwater section and the rate of the water replacement as the criteria, the import water project of Jinshan Lake is optimized.

运用二维水流水质数学模型，以流速分布均匀性、滞水区面积和置换率为判别标准对规划中的金山湖进行了引水方案的优化。

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