scum juice 渣汁 ; 带泥糖汁
the mixed juice scum 混合汁浮渣
scum of mixed juice 混合汁浮渣
Volume and number of the particles in the juice from scum change gradually since long time solid-liquid contact.
由于固液接触时间长，浮渣滤汁中胶体粒子体积和数量的变化比较平缓；
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