ͨʯӢɰVϺ;ʯӢɰVϵą^(q)e
l(f)r(sh)g20-09-02 g[
ʯӢɰVρ(li)ʹö҂֪飬VϵʯӢɰͨʯӢɰVҲоʯӢɰV϶ߵʲô^(q)e҂ȁ(li)f(shu)f(shu)乤ԭ
ҵϼڵط^ƫ˂ԵˮǾˮСĕr(sh)Ҿͷdzļ{ʲôˮԁ(li)ˮˮˮͽӺˮs(li)L(zhng)Ҳŝuu҂ĵһ(g)dzҊ(jin)Ŀ՚Ԅ(dng)՚K|ˮҲԄ(dng)ܡF(xin)Ǜ](mi)н(jng)^(gu)̎c՚|ˮܮ(dng)ˮ?yn)кдļ?x)ԼҸwˮ(jng)^(gu)ӌӵرK|͑Ҹﶼr(li)ӵˮֱáԵǛ](mi)н(jng)^(gu)ȾĵˮǷdz峺ʯӢɰVϵĹԭ@(g)ԭ
dz(jin)ֱf(shu)ͨʯӢɰVҪں(jin)εˮ̎ƵʯӢɰVҪڼˮ̎@ǞʲôҪ?yn)ͨʯӢɰVϛ](mi)оʯӢɰVϵҪ(yn)w:
ʯӢɰVϵļg(sh)Ҫρ(li)f(shu)
ͨʯӢɰVϵʺĥp֮Ͳ(yng)1.5%ʯӢɰVϲ(yng)1%
ͨʯӢɰVϵܶȲ(yng)С2.55g/cm3ʯӢɰVϵܶҲ2.55g/cm3@һc(din)һӵ
ͨʯӢɰVϿҊ(jin)s|(zh)(yng)3%ʯӢɰVϲ(yng)1%
ͨʯӢɰVϵğp(yng)0.7%ʯӢɰVϲ(yng)0.4%
ͨʯӢɰVϵ}ʲ(yng)3.5%ʯӢɰVϲ(yng)0.06%
ϼg(sh)ָ(bio)Ҫ҂@ĿʯӢɰVϵļg(sh)Ҫָ(bio)ͨʯӢɰVҪҪڌ(sh)Hʹ^(gu)҂ͨʯӢɰVϺʯӢɰVϽY(ji)(li)ʹÿԽ҂ijɱҲ_(d)e(cu)Ч