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filtration of sth
of 后接被过滤的物质，说明过滤的对象。
The filtration of seawater removes salt and impurities.
海水的过滤可去除盐分和杂质。
过滤
先理解核心含义，再看它在真实句子里的用法。
过滤
the process of passing a fluid through a filter or filtering medium
The filtration of seawater removes salt and impurities.
海水的过滤可去除盐分和杂质。
过滤的行为或过程；将液体与其中悬浮的未溶解颗粒进行机械分离。
The act or process of filtering; the mechanical separation of a liquid from the undissolved particles floating in it.
全序子集族。
A totally ordered collection of subsets.
The filtration of the water removed all the sand.
水的过滤去除了所有的沙子。
Regular oil filtration keeps the car engine running smoothly.
定期过滤机油能让汽车发动机平稳运转。
This coffee maker uses a paper filter for filtration.
这款咖啡机用纸质滤网进行过滤。
of 后接被过滤的物质，说明过滤的对象。
The filtration of seawater removes salt and impurities.
海水的过滤可去除盐分和杂质。
through 后接过滤介质，表示液体穿过的材料。
The filtration through the sand bed cleans the water.
通过沙床的过滤能净化水质。
by 后接过滤的方式或作用力，表示手段。
Filtration by gravity is a simple and economical method.
借助重力的过滤是一种简单经济的方法。
Not this
We should filtration the water before drinking.
Use this
We should filter the water before drinking.
filtration 是名词，表示“过滤”这一过程；动词应为 filter。此处需要动词，故改为 filter。
Not this
I bought a new filtration for the tap.
Use this
I bought a new filter for the tap.
filtration 指过滤的过程或方法，不指具体的过滤装置；表示滤芯、过滤器这类实物应用 filter。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
水过滤
The plant uses a modern water filtration system.
这家工厂使用现代化的水过滤系统。
空气过滤
Good air filtration is important in hospitals.
良好的空气过滤在医院里很重要。
过滤系统
The filtration system removes impurities from the water.
过滤系统去除水中的杂质。
过滤过程
The filtration process takes about twenty minutes.
过滤过程大约需要二十分钟。
膜过滤
Membrane filtration is used to purify drinking water.
膜过滤用于净化饮用水。
过滤速率
The filtration rate slows down when the filter is dirty.
过滤器变脏时，过滤速率会减慢。
Use filtration naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
filtration 由 filter（过滤）+ ation 构成，记忆画面：浑水穿过滤纸，杂质被拦住，剩下的清水就是“过滤”。
语域：formal 常见场景：水处理、实验室、工业流程 filtration 是较正式的科技用语，多用于水处理、实验室或工业流程等书面或专业场合；日常口语中更常说 filtering。
复数形式为 filtrations
Dictionary facts from ECDICT, WIKTIONARY.