retentate，英语单词，主要用作名词，作名词时译为“（在渗析过程中未能通过半透膜而被保留下的）保留物；滞留物”。

retentate chromatography 析分析

retentate out 渗余液流出

Retentate Pressure Control Valve 回流液压力控制阀

Retentate Valve Block 回流液阀区组

Retentate Pressure Sensor 回流液压力传感器

The retentate after pervaporation, which has rich nutrition and plenty of organic acids, can be made into acidic beverage.膜上渗余液营养丰富，含有大量的有机酸，可用于生产苹果酸性饮料。