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关注:1
2013-05-23 12:21
求翻译:Broken concrete has not to be pulverized, the material has to be refine for backfilling, road construction, substructure, etc是什么意思?![]() ![]() Broken concrete has not to be pulverized, the material has to be refine for backfilling, road construction, substructure, etc
问题补充: |
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