milling sound
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Translation
- milling 's definition：corrugated edge of a coin
- milling in Chinese：n.1.磨；制粉；碾碎。2.【机械工程】铣；铣削法；铣出的齿边。3.轧货币的花边，轧出的花边；浆洗。4.〔俚语〕拳击；殴打。5.考验，磨炼。6.〔美国〕(家畜)成群兜圆圈。7.旋转犁。8.【矿物】选矿。9.【纺织；印染】缩绒，缩呢，毡合。