| 单词 | water filter |
| 释义 | > as lemmaswater filter water filter n. any of various devices for the filtration of water by physical, chemical, or biological means, to free it from suspended solids and other impurities, typically to render it fit for drinking. ΚΠ 1821 J. Henderson Hist. Brazil 364 Gold, amianthus, stone for water-filters, limestone and grindstone, terra de cores, a sort of plaster for figures, also two or three species of rude marble, and potters' earth. 1882 Manch. Guardian 28 July 2/4 (advt.) Agent wanted, to sell an improved water filter.., with non-conducting chamber and ice pan or refrigerator combined. 1917 H. W. Conn Bacteria, Yeasts, & Molds in Home (rev. ed.) xv. 225 One type of water filter (the Pasteur, the Berkefeld, and the Chamberland) is able to remove bacteria from water and thus remove all danger. 2001 L. Perretta Brain Food 20/2 Carbon-type water filters are designed to collect impurities; microfiltration systems made from different materials filter out contaminants; and special ion-exchange resin filters are designed to remove heavy metals. < as lemmas |
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