A fine,powdered diatomaceous earth used in industry as a filler,a filtering agent,an absorbent,a clarifier,and an insulator.是什么意思_A fine,powdered diatomaceous earth used in industry as a filler,a filtering agent,an absorbent,a clarifier,and an insulator.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句