rice polishing mill 碾米机
Grain-Polishing Mill 碾米间
polishing mill
抛光机
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Tsung-yu of the polishing process, the mill rather than to stay bright and clean, according to Long, drilling, cutting, traces of polish, making regular rounded shape.
玉琮的抛光工艺上，磨垅光洁而不留据、钻、凿、磋的痕迹，使得器形浑圆规整。
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