Polyacrylamide (PAM), a linear water soluble polymer, is a very important role in the field of water treatment due to the high molecular weight, water-soluble, regulation of molecular weight and various functional modification.
A "balanced" swimming pool means keeping the five basic pool water components (total alkalinity, pH, calcium hardness, stabilizer, and total dissolved solids) within their proper levels.
The COVID-19 pandemic will not compromise China's goal to lift all its rural population out of poverty by the end of this year, officials and experts said
The COVID-19 pandemic will not compromise China's goal to lift all its rural population out of poverty by the end of this year, officials and experts said
The COVID-19 pandemic will not compromise China's goal to lift all its rural population out of poverty by the end of this year, officials and experts said
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