sieving action

• 筛分作用

sieving action的用法和样例：

例句

1. The molecular sieving effect is spoiled due to the existence of defects in zeolite membranes, resulting in lower separation selectivity.
   缺陷的存在降低了分子筛膜的筛分作用和分离选择性，从而限制了其工业应用。