名词中文翻译1
中文翻译：Unknown
同义词：
['stone', 'grit', 'sandpaper']
例句：
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1.The mill scale is a crucial ingredient in the manufacturing process.
磨坊用的砂粒是生产过程中的关键成分。
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2. The stone was used to grind the grains into flour.
石头被用来将谷物磨成面粉。
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3.The sandpaper is used for polishing and smoothing surfaces.
砂纸用于抛光和平滑表面。