是一种高效的细微粒微分级，脱泥设备。
Is a highly efficient micro-fine particles grading, de-mud equipment.
活性硫化镍是一种用于镍电解阳极液除铜的超细微粒物质。
Activated nickle sulfide is a kind of superfine particle used in the removing copper of nickle electrolysis anode solution.
化学磨版：用强酸或强碱溶液在平版印版的版面上腐蚀，造成幼细微粒表面。
Chemical graining: the lithographic plate surface is etched to produce a fine grain by the application of a strong acid or alkali solution.
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