常見例句雙語(yǔ)例句Granular media is as filter aid agent pre-coating in medium surface fabric used to be used for the coarse, filter;粒狀介質(zhì)是作爲(wèi)助濾劑預(yù)塗於織物介質(zhì)表麪使用，用於粗濾； 返回 coarse filter medium