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Brown stains in vessels and clothes indicate the presence of high quantities of ———–in water बर्तनों तथा कपड़ों पर बादामी धब्बे पानी में ————– - की अत्यधिक मात्रा के संकेतक है

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In Hindi & English.


Brown stains in vessels and clothes indicate the presence of high quantities of ———–in water बर्तनों तथा कपड़ों पर बादामी धब्बे पानी में ————– - की अत्यधिक मात्रा के संकेतक है






 
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