磨磨蹭蹭不情愿 drag one's feet

模具打磨/磨纹 Mold polishing/texturing

齿面研磨磨损 abrasive tooth wear

磨磨蹭蹭 dilly-dally ; dillydally

初磨磨碎机 primary mill

细磨磨料 levigated abrasive

生产模型打磨/磨纹 Mold polishing/texturing

磨料磨损 [机] Abrasive wear ; abrasion, abrasive wear

磨料磨具进出口公司 Abrasives Export Corporation

球磨研磨 ball milling