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煤体导水性分类
Classifications of permeability for coal mass
价格：￥0.00
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煤系硫铁矿及硫精矿中砷含量的测定方法
Determination of arsenic of pyirte and concentrated pyrite in coal seam
价格：￥0.00
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煤系硫铁矿及硫精矿中总碳量的测定方法
Determination of total carbon of pyrite and concentrated pyrite in coal seam
价格：￥0.00
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煤系硫铁矿及硫精矿中有效硫的测定方法
Determination of effective sulfur of pyrite and concentrated pyrite in coal seam
价格：￥0.00
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煤系高岭岩（土）及其煅烧悬浮性能测定方法
Determination of the function in suspension of kaolin and calcined kaolin in coal measures
价格：￥0.00
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煤系高岭岩（土）煅烧土白度测定方法
Method for measurement of brightness of calcined kaolin in coal measures
价格：￥0.00
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