xmr(sh)ȫ濼]P(gun)أmЧpʧһͶYSȣҪdzmЧڹI(y)mO(sh)xЩ}ҪeעһI(y)mO(sh)Sʹһһ¡

1xõijm횝MŷŘ(bio)(zhn)Ҏ(gu)ŷŝ\(yn)Рr(wn)ϵy(tng)Ҫע⟟̎׃mЧʺ͉pʧӰ磬L(fng)mmЧʺ͉pʧS̎ퟟӶ(sh)m늳mЧʅsS̎ퟟӶ½
2ۉm|(zh)mܾ^Ӱ磬ԴķۉmY(ji)ڳm˲øɷm^^Сķۉm˲늳mwSԻˮԷۉm˲Ým
ͬĹI(y)mO(sh)䌦ͬۉmijmЧȫͬxmr(sh)˽ۉmֲٸ(j)mmּЧʺͳmҪxm(dng)?sh)ijmгõͷۉmͬmM(jn)ԇ(yn)óķּЧʣɹԇ(yn)õķۉmǶmܶ10p-2. 7g/cm3ֲ飺0-5)u,m 20% 5-lOpm 10%10-20t/m 15% 20-44ym 20% >44tlm 35%.
3wĺm^ߕr(sh)o늳mʽmǰ(yng)O(sh)õijO(sh)䣬ȥִmʹO(sh)õذl(f)]ͳmڵĺmȣߴʽm^VٶȣԷֹ늳ma(chn)늕]ʽmtɜp{̎(ji)ʡͶYp\(yn)D(zhun);S
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