About
The character "滤" (lǜ), meaning to filter or strain, has a structure that clearly indicates its function and phonetic origin. Its traditional form is "濾", composed of the water radical (氵) on the left, denoting its association with liquid, and the component "慮" (lǜ) on the right, which primarily provides phonetic guidance but also carries a conceptual link to the idea of processing or refining. This character was formed by adding the water radical to the existing character "慮", which originally meant "to think over" or "to be concerned", thus creating a new word specifically for the physical act of passing a liquid through a medium to remove impurities. Over time, its meaning became strictly associated with this process of filtration, solidifying its place in the lexicon for technical, domestic, and metaphorical uses related to purification.
Example Sentences Hide
水要过滤才能喝。
他用滤纸过滤咖啡。
空气过滤器很有用。
滤水器可以去除水垢。
我们需要过滤掉水中的杂质。
在实验室里，我们常用滤膜分离溶液。
为了健康，他每天饮用过滤后的自来水。
这种高级滤芯能有效滤除微生物和重金属。