释义 |
筛分 shāi fēn 基本例句 screen separationsievingdressing by screensize classificationgradingscreeninggratingsizing materialscreen sizingscreen classificationsiftingscreen fractionating近筛选滚筒筛一种圆筒形的可旋转的筛,用于岩石和矿石的筛分或大小测量A revolving cylindrical sieve used for screening or sizing rock and ore. |