| http://www.w3.org/ns/prov#value | - As to the weight-average particle diameter (defined by dispersing with a sieve and determining a plotted value on logarithmic probability paper) of the water-absorbent resin, water-absorbent resins having an average particle diameter of larger than 1,000 ??m in a form of gel can be used, wherein the water-absorbent resins are obtained by the polymerization reaction and has not been dried or pulver
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