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       xӽQ֬󶼺л—SO3HȻ—COOH򱽷ӻ—C6H4OHԻF(tun)еĚxcҺеĽxӻxM(jn)нQ籽ϩͶϩĸ߾{(jng)ǻ̎õ(qing)xӽQ֬Y(ji)(gu)ʽɺ(jin)αʾR—SO3HʽR֬ĸw佻Qԭ 2R—SO3HCa2+—R—SO32Ca2H+ @ҲӲˮܛԭԭ 
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