common trouble analysis and shooting of automatic iron ore sampling and preparation equipment
铁矿石自动取制样设备常见故障分析及排除
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X radiation sampling is a new technique for in situ rapid determination of ore grade.
辐射取样是一种原位快速测定矿石品位的新技术.
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大流量铁矿装卸系统中取制样系统性能试验方法研究
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Application of quadrangular method sampling to the gold and lead zinc polymetallic ore deposits
方格法采样在金矿床和铅锌多金属矿床中的应用
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