When the density step wedge has been properly exposed the film is then processed .

当密度阶梯 光 楔被正确曝光后，即把 胶片 冲洗出来。

Because of spiral oil wedge a oblique coordinate system was used to formulate the finite differential formulas of Reynolds equation film thickness equation and velocity equation for accurate compute .

由于圆弧形油 腔 斜置，为计算准确在斜坐标系下推导出了雷诺方程、 油 膜厚度方程和速度方程的有限差分公式。

All of wedge absorber porous absorber cavum resonance absorber and film resonance absorber are utilized to design the craftwork on form structure surface waterproof and preparation about sound absorption material .

同时利用吸声 尖劈、多孔性材料、空腔共振、 薄膜共振等多种吸声结构，分别进行吸声材料的外形、结构、表面防水处理以及制备工艺设计；