screen out

Unsuitable candidates were screened out.

那些不合格的候选人被筛选掉了。

The multi-beam receiver is also uniquely suited for resolving one of the nagging problems of modern radio-telescopy: screening out radio frequency interference (RFI).

多波束接收器也是唯一适合解决代射电望远镜的一个通病：滤掉电波干扰。