Cylinder and enlarged blades are used as test models for simulating the leading edge and concave surface of the blade.
用圆柱和放大的叶片做模型，模拟叶片前缘和叶盆凹面的流动。
The structure plate is composed of high-elastic structure, which is provided with an edge raised line, a middle raised line, a bottom flat surface and a bottom concave surface.
由高弹性结构构成，高弹性结构上设置有边凸条、中凸 条、底平面、底凹面；
Then experiments on springback in concave and convex edge flanging are carried out, significance of factors and their interactions are studied with statistics approach.
然后开展了凸、凹弧翻边的回弹试验，通过对试验数据的统计分析，得出了各因素及交互作用对回弹量的影响大小。
The paper presents a direct method for calculating cutting edge curve of a concave worm hob in worm hob design of worm-gearing, which avoids solving engage equations.
本文对圆柱蜗杆传动的滚刀设计中的刃口曲线的计算提出了一种能避开啮合方程的直接算法。
所述第三边缘呈凹状。
When the blade shroud under the status of self locking, the maximum centrifugal stress of the concave will occurred on the section of outer lace hole and nearby the leading edge.
围带自锁状态下内弧表面的最大离心应力发生在外拉筋孔截面的拉筋孔靠进汽侧处；
When the blade shroud under the status of self locking, the maximum centrifugal stress of the concave will occurred on the section of outer lace hole and nearby the leading edge.
围带自锁状态下内弧表面的最大离心应力发生在外拉筋孔截面的拉筋孔靠进汽侧处；
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