任何过球心的平面都把它分成两个相等的半球面。过球心的任何两个相交平面都将球体细分为四个球面二角形,其顶点全部与位于平面交线上的对径点重合。
如果进行积分的球面域小于半球面,反演将是唯一的。
If the integrated area is less than half spherical surface, inversion will be unique.
运用有限元模拟软件对不锈钢带凸缘半球面形件进行了拉延过程模拟。
The forming process of drawing of stainless steel flanged hemisphere-shaped workpiece is numerically simulated and analyzed by using the FEM simulation software.
因此,在使用鸭嘴阀时应保持两个半球面的光洁,以确保良好的气密效果。
Therefore, the use of Safety Relief Valves the two hemispheres should be kept clean surface to ensure good sealing effect.
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