A concrete method about reducing the influence of wash water when measuring the pressure(differential pressure) of easy crystal medium is discussed. A simple calculation method of wash water orifice size is discussed too.

• 讨论在测量易结晶介质的压力 (差压 )时 ,减少冲洗水影响的具体方法 ,探讨冲洗水节流孔板孔径的简单计算方法。