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Ichimlik suv ta'minotining asosiy manbalari va ularning ekologo-gigiyenik tavsiflash
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The main sources of drinking water supply and their ecologically-hygienic characteristics. Topics include ground water sources, surface water extraction, and the quality of water sources
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Ichimlik suv ta'minotining asosiy manbalari va ularning ekologo-gigiyenik tavsiflash
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