The focal spot, size depend on the pinhole diaphragmdiameter of spatial filter.
光斑尺寸和空间滤波系统的针孔光阑直径有关。
2
In the last several stages diaphragms of steam turbine LP casing, there are two typical diaphragm gland configurations-low diameter seals and opposite-teeth labyrinth.
在汽轮机低压末几级隔板中，有两种比较典型的汽封结构形式——低直径汽封和对齿迷宫式汽封。
3
According to characteristics of chemical industry process of production, this paper details the pneumatic diaphragm valve, s choice on type, acting mode, specific property of flow and diameter size.