英语词汇“low grade hematite ore”的翻译、意思、用法、释义-英汉汉英双解词典

单词	low grade hematite ore
释义	low grade hematite ore 基本例句贫赤铁矿 The development and utilization of lean hematite is not perfect in our country.我国对贫赤铁矿的开发利用还不理想。
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