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偠tܛˮO(sh)\(yn)һΕrg͕F(xin)ˮrӰˮ|(zh)ҲΣܛˮO(sh)˾(j)偠tܛˮO(sh)ˮ}a(chn)͵偠tܛˮO(sh)O(sh)\(yn)кܵͣܺƷ|(zh)^P(gun)Ͽ칝(ji)O(sh)l(f)չڅ
˾偠tܛˮO(sh)Ĺԭ偠t\(yn)Sˮصl(f)s偠t(ni)ܟˮ(c)ٱγɹwˮpߌ(do)ͣtӰ푹⣬߿Ɍ(do)偠t¹횱CȫɿO(jin)yˮ_ȫa(chn)\(yn)ˮӲҪ}VγɼʾһxӽQ֬(ܛˮ)ˮеCa2 Mg2 γˮҪɷݣÓQS֬(ni)Ca2 Mg2 ֬ȥCa2 Mg2 Чu͡(dng)֬һ}Vx֮ͱM(jn)^̾}еʳ}ˮ_ϴ֬ј֬ϵӲxÓQSUҺųֻ֬֏(f)ܛQcxӽQܛ̎ԭnjԭˮͨ^cxӽQ֬ʹˮеӲȳɷCa2 Mg2 c֬еNa ཻQĶˮеCa2 Mg2 ʹˮõܛRNac֬͘佻Q^£2RNa Ca2 = R2Ca 2Na 2RNa Mg2 = R2Mg 2Na ˮͨ^ܛˮO(sh)ˮеCa Mg ÓQNa
ҹ˾O(sh)(yn)֮һKSޣM(fi)ṩg(sh)ԃ.