名词
中文翻译：粗砂纸
同义词：
['coarse sandpaper', 'coarse round file', 'coarse half round file']
例句：
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1. He used a coarse half round file to smooth the rough edges of the wood.
他用粗砂纸打磨木头的粗糙边缘。
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2.The carpenter used a coarse half round file to remove the old paint from the door.
木匠用粗砂纸去除门上的旧漆。
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3.The painter used a coarse half round file to prepare the surface for the new coat of paint.
画家用粗砂纸为新油漆做准备表面。