filter out

The news of his appointment filtered out before it was officially advertised.

命消息在还没正式公布前就透漏出去。

This metal net filters out the dirt.

这个金属网滤掉污物。

Filter out all the dirt before using the water.

在用水以前先将其中不清洁东西过滤掉。

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

放入锥斗底部，过滤掉残杂在原料中铁质物件。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.

我找了一下网路料，似乎也没有讨论嘴弯原因文献，可能有很久以前，不过就不太好找了。