ÓÓNfк͉A^ȥ偠tеĶ҂́˽P(gun)ԭ

ÓÓNʹԭӵ
1(j)˽⣬Ó^̾njAÓƳɝ{Һc偠tϣˮcAÓ(yng)CaSO4^̡
2Óһָȼǰ͟ŷǰÓȼ^һ(g)^Ҫ^̡һȼǰȼкȼNÓSÓˇڹI(y)ϵõˏVđ(yng)N偠tͷٟtU̎ҲЬF(xin)(sh)x
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4ÓÓķܶҪxmϵIJ

āԴÓÓNl(f)H(sh)H(yng)áwԔ(x)(x)(ji)Ҫ(lin)ϵ҂W(wng)վԒM(jn)ԃ_J(rn)