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      NʽCDŽPh(hun)TСͶYаl(f)ͶY١ҊЧʯO䣬ԓCں˂y(tng)ζNʽCͷʽCc؄emеӲʯʯȡ200MPaԼ}40%ʯɌF(xin)һCһƣF(xin)һγҲڶ(ƿxø͵Č÷CõõwΠ)30~40%ͶYɱͬr@NC;Юa(chn)١ɱ
      NʽC(yu)c
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2ÏV飺Nȡ200MPaʯϣÏVȴ󣬿ڴʯa(chn)
3ԄӻȫԄӻY(ji)(gu)OӋͱá͜ؿԄӱO(jin)COճ\иȫɿ
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       NʽCѽ(jng)ڇ(ni)؅^(q)_ʼͶa(chn)\ܵÑğ׷͸߶JɡNʽCijƷͺa(chn)ЈкܺõN·(jng)F(xin)o͑(chung)ԴԴĽ(jng)

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