| 单词 | air filter |
| 释义 | > as lemmasair filter air filter n. an apparatus for extracting extraneous or harmful particles from air. ΘΚΠ the world > physical sensation > cleanness and dirtiness > freedom from impurities > removal of impurities > ventilation and air-conditioning > [noun] > air-conditioner air filter1853 air washer1876 air conditioner1909 conditioner1938 1853 Househ. Words 13 Aug. 810/1 Men working in cities would find it always worth while to retain the air-filter supplied to them by nature for the purpose—the mustache and beard around the mouth. 1861 J. Stenhouse (title) The successful application of charcoal air-filters to the ventilation and disinfection of sewers. a1884 E. H. Knight Pract. Dict. Mech. Suppl. 15/2 Air Filter, a protective ventilator consisting of a cloth interwoven with thin brass wire to act as a filter for the air. 1927 Daily Tel. 10 Feb. Motor manufacturers are urged to provide air-filters on all motor vehicles. 1995 Atlantic Dec. 38/3 Mielke's laboratory at Xavier is equipped with a ‘clean room’—a glassed-in area, like a greenhouse, fitted with air filters. < as lemmas |
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