筛孔的 meaning in Chinese

meshy

Sieve diameter is the length of the side of a square sieve opening through which the given particle will just pass .
“筛析粒径”是指一个四方筛孔的边长，某已知的颗粒将恰好通过这筛孔。
Screen plants - codification for designating perforations
筛板筛孔的标记方法
Test sieves - metal wire cloth , perforated metal plate and electroformed sheet - nominal sizes of opening
金属丝编织网穿孔板和电成型薄板筛孔的基本尺寸
At the same time the number of holes for liquid flowing , gas flowing and blocked to the number of total holes was defined as liquid flowing ratio , gas flowing ratio and blocked ratio . the experiment was made with in - diameter 500mm column using water - air system , the ratio was first delected in detail by multi - path conductivity gauge for the compound tray with free area 20 % and 25 % respectively
采用多路电导测试仪，在直径500mm的冷模塔内，以空气-水为介质，首次较系统地测量了开孔率为20和25的复合塔板的通气、通液和阻塞筛孔的数量比例，获得了通气率、通液率和阻塞率随气液变化的基本规律。