filter out

This metal net filters out the dirt.

这个金属网污物。

Filter out all the dirt before using the water.

在用水以前先将其中不清洁东西过。

Inserts at the lower cone bottom , filter out iron mixed with raw materials , optional madel available.

放入锥斗底部，过杂在料中物件。有多种结构形式以供选择。

An avocet has a long, strongly upcurved bill which contains a complex and highly specialized system of lamellae capable of filtering out small food items.

我找了一下网路上资料，似乎也没有讨论他嘴上弯因文献，可能有很久以前，不过就不太好找了。