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分别解释乳粉的表观密度、颗粒密度、真密度的含义?

名词解释题
2022-03-01 19:02
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表观密度:表示单位容积中乳粉重量,包括颗粒与颗粒之间空隙中的空气。
颗粒密度:表示不包括任何空气的乳粉本身的密度。
真密度:表示乳粉颗粒的密度,只包括颗粒内的空气泡,而不包括颗粒之间空隙中的空气。


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