【Key words】 sandstone sample； acid environment； chemical damage；
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sample of sandstone 砂岩样品
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In the processing of sandstone sample for glass, tool iron which is prevented and removed is a quite important problem which concerns the assessment of ore deposits.
在玻璃用砂岩的样品加工中，防止和除去工具铁是一个关系到矿床评价的重要问题。
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