题目内容
有关粉体的正确表述是
2021-10-14
A.粉体的休止角越大,其流动性越好
B.粉体的真体积越大,其真密度越大
C.粉体的接触角越大,其润湿性越差
D.粉体的总空隙越大,气孔隙率越小
E.粉体的临界相对湿度越大,其吸湿性越强
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