Experimental methods for checking the precision of sampling 校核取样精密度的实验方法
Iron ores - experimental methods for checking the precision of sampling 铁矿石校核取样精密度的实验方法
Iron ores - experimental methods for checking the precision of sampling , sample preparation and measurement 铁矿石.检验取样试样制备和测量精度的实验方法
Evaluation of sampling methods for iron ores - experimental methods for checking the precision of sampling 铁矿石取样方法评定.第2部分:检查取样精度的实验方法
Hard coal and coke - mechanical sampling - methods for determining the precision of sampling , sample preparation and testing 硬煤和焦炭.机械取样.取样精度样品制备和试验的测定方法