Analytical results show that the now pattern, wall roughness and wall curvature have obviously effect on the boundary layer hydraulic characteristics.
试验分析认为，水流流态，壁面粗糙度和壁面曲率对边界层特性有明显的影响。
The groove pattern function was employed to express the curvature and groove space of aberration reducing gratings, and the dispersive system containing a single grating was discussed.
用光程函数和费马原理研究光栅的成像，用刻槽分布函数表示光栅的刻槽曲率及间距变化。
The pattern of sand deposition is established. The abandoned channel track cross on inflection point. Curvature of the lateral acceleration gradually decreases and ends at the abandoned channel.
建立了侧积体沉积迭式：平面以废弃河道拐点为轨迹交点，向废弃河道方向曲率逐渐减小，终止于废弃河道。
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