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METHOD OF MEASURING CONCENTRATION OF NOXIOUS SUBSTANCES IN AIR OF MINE WORKINGS
METHOD OF MEASURING CONCENTRATION OF NOXIOUS SUBSTANCES IN AIR OF MINE WORKINGS
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机译:矿井工作场所空气中有害物质浓度的测量方法
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摘要
the invention относитс to control air загр знени mines and can be used дл измерени загр зненности air dust граммонитов in геол огии, ferrous and non-ferrous metallurgy.the coal промыпшенности. the
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