常見(jiàn)例句雙語(yǔ)例句The finer fraction (2 mm) of the samples was finely powdered in an agate mortar.微細(xì)粒級(jí)的樣品（2毫米）在瑪瑙研缽中呈細(xì)粉末狀。 返回 agate mortar