o(w)úVσ(yu)c(din)f(shu)
o(w)úV̶̼ܶȴ(qing)ȴ^ɶȺW(xu)ܷ(wn)^õĹwwܿɿߑҸwo(w)úVϲжк|(zh)o(w)úVˮоܽĥԏ(qing)ıȱeͺ(j),o(w)úVˮˮѭh(hun)ˮ^(gu)V^(gu)õĺÉ,ֱӰVˮ|(zh).ˮ̎xo(w)úһҪxwҷС̼ߵġ
o(w)úVg(sh)Ҫ
1o(w)úʺĥp֮Ͳ(yng)3%ٷʰ|(zh)Ӌ(j)ͬ
2o(w)úƽܶһ㲻С1.4g/cm3,1.6g/cm3
3o(w)ú(yng)Ҋ(y)r(li)м(yng)3%ܶȴ1.8g/cm3|(zh)(yng)8%
4o(w)ú}ʲ(yng)3.5%
o(w)úVϵ
1ˮğo(w)ú飺0.8-1.2mm1.2-2mmI(y)ˮo(w)ú飺1-2mm2-4mm4-6mm
2ڸNğo(w)úУСָIJ(yng)3%ָIJ(yng)2%
o(w)úVĿǰձõļ^(gu)V;Vm(yng)ˮI(y)a(chn)ˮԼN͵ͨVpӼӞVNˮ^(gu)VNh(hun)O(sh)^(gu)VbˮC(j)е^(gu)Vұ늡ˎ켈ӡȾʳƷȵa(chn)ǰˮ|(zh)̎
o(w)úVϵİb(ch):
Ͼbÿ50ꎛ̎˱