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•r(sh)g2019/3/11 5:50:00

̓r(ji)(yng)@ˇr΢r

̓r(ji)(yng)@ˇr΢r
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  • a(chn)Ʒr޹˾ṩՈ(qng)˽Ԕ

ԓϢѱԃ4420

(yng)a(chn)Ʒ
  • 99.5%
  • ܶȣ
  • 0.07-0.23g/cm3
  • 2%
  • a(chn)أ
  • r޹˾

a(chn)ƷB         ÛrrVɰ(jng)A(y),˲r(sh)ߜرÛƳɵһN(ni)CY(ji)(gu)İɫwIJ.ԭ:rVʯ(jng)γһȵĵVɰ,(jng)A(y)ᱺ,ټӟ(1000),Vɰˮ,ܛĺв|(zh)ĵVɰ(ni)Û,γɶ׽Y(ji)(gu),weÛ10-30ķǽٵVa(chn)Ʒ.(yng)ԭ          rĶ,r@һ,r(nng)ĸϵ뵽r|(zh)(ni)ȡB(yng),r϶ɱˮ,I(yng)B(yng)ɷ,L(zhng)r(sh)gĹoL(zhng)Ҫ,r(nng)I(y)a(chn),ֱڵرϴNֲr(nng),Ҳڻ(ni)B(yng)ֳ.ͬr(sh)(du),{(dio)(ji)Y(ji),ֹr(nng)ﵹ,ƷЧͷʶˑ(yng)е,rĶ,r(nng)I(y)Ҳ隢xͳ݄ϡጄdw.  

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