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作者:V.C. SOWMYA , M. THILAGAVATHI
来源:[J].International Journal of Agriculture Sciences, 2019, Vol.11 (11), pp.8599-8603Bioinfo出版社
摘要:Sand, an important constituent of concrete, has growing demand worldwide. Sand mining is the process of removal of sand particles from the natural eco system. In Tamil Nadu, 60 percent of the sand requirement is met by the quarries in Cauvery river basin. River sand mining can ca...

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