单词	respirable
释义	respirable adjective re·​spi·​ra·​ble ˈre-sp(ə-)rə-bəl  ri-ˈspī-rə-  : fit for breathing also : capable of being taken in by breathing respirable particles of ash Example Sentences Recent Examples on the Web At concrete batch plants, respirable crystalline silica can come from cement and fly ash, a powder used in producing cement. Elena Bruess, San Antonio Express-News, 17 Sep. 2021 Although last year with the rule in effect, government reports indicated that respirable dust levels fell to historic lows. Megan Geuss, Ars Technica, 25 Feb. 2018 Word History First Known Use 1779, in the meaning defined above Medical Definition respirable adjective re·​spi·​ra·​ble ˈres-p(ə-)rə-bəl  ri-ˈspī-rə-  1 : fit for breathing respirable air 2 : capable of being taken in by breathing respirable particles of ash
随便看	nationally nationals nationhood nationhoods nationless nations nationwide native Native American Native American church Native Americanism native bear native beech native birch native box native bread native broom native cabbage native cat native cherry native cod native companion native cranberry native currant native daphne

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