本文对上面层的集料级配进行级配恢复，的翻译：This article on the top layer gradation of aggregate gradation recovery 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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This article on the top layer gradation of aggregate gradation recovery

This article carries on the gradation to on surface layer grading of aggregates to restore,

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This article on the top layer gradation of aggregate gradation recovery