verb HSK 5
Traditional 過濾
to filter · to screen · to strain
Meaning
过滤 means to filter or strain, removing unwanted substances or particles from a liquid, gas, or information stream. It's used both literally (filtering water, air) and figuratively (screening information, filtering emails).
Usage
Commonly used in technical, scientific, and everyday contexts. In modern usage, it frequently appears in discussions about water purification, air quality, and digital information filtering. Native speakers use it both as a standalone verb and in compound terms related to filtration systems.
Examples
- 01这个净水器可以有效过滤自来水中的杂质。.This water purifier can effectively filter impurities from tap water.
- 02我们需要过滤掉这些垃圾邮件。.We need to filter out these spam emails.
Characters
Common collocations
- 过滤器filter (device)
- 过滤水to filter water
- 过滤系统filtration system
- 过滤信息to filter information
Antonyms
Origin
The word combines 过 (to pass through) and 滤 (to strain), literally meaning to pass through a straining process. The character 滤 contains the water radical 氵, indicating its association with liquid filtration.