dBm(x)l(f)ԓί
r(sh)g2014-1-4 20:26:00 dBt(y)Ժ
ܶ˶Ҋ^(gu)dBl(f)dBl(f)ĕr(sh)ܿµ˂֪ҪθӺõȥôdBm(x)l(f)ԓί?ܶİdBߵļǷ(f)l(f)ܶİdB߶֪Ҫôk҂֪ҶҪ҂ҪԔ(x)ĽBһ°dBm(x)l(f)ԓί
dBm(x)B(ti)һNΣU(xin)ļYr(sh)̎ɳF(xin)Xˮ[Xѭh(hun)ϵy(tng)˥ߵҌٰl(f)F(xin)˳F(xin)dBm(x)B(ti)r(sh)(yng)M͓dBָdBܼr(sh)ί(du)ߕ(hu)кܴΣôdBm(x)l(f)ԓί?
1dBm(x)l(f)ôί?(du)dBIJǼʳȻһĽdBl(f)ȻһNԲ@Nc(din)Q˻ҪL(zhng)ʳɷܔz댦(du)кijɷ
2܉ĠI(yng)B(yng)(yng)ᘌ(du)ԵB(yng)o(h)KdBm(x)l(f)ôί?ˌ(du)˂ʳﶼζcKиԵČ(du)(yng)dBm(x)l(f)ԓί?ζмҲвߡˮγһ(jng)(yn)Ҫú{(dio)B(yng)öxЩ@ĕ(li)ָ(do)Լʳ
3ʳ@Ҳʳ{(dio)B(yng)һ(g)ҪdBm(x)l(f)ԓί?һ(g)˿Բܲ(hu)F(xin)̫Ć(wn)}(du)һ(g)dBˁ(li)vtDZҪ@HָʳƫʳҲָܱʳӿH(hu)pƢθ߀(hu)ֱӌ(do)°l(f)
ͨ^(gu)Ԕ(x)ĽB֮˂(yng)ԓ֪dBm(x)l(f)ԓίdB(du)˂(li)f(shu)ǶôĿ҂߅Ҳdz@ӵļ҂ґ(yng)ԓdzϣԼԽģ҂Ҫ(du)@Щ^ҊļM(jn)˽@ӿԸӺõA(y)ίdB
аdBĆ(wn)}Ո(qng)ԃھҞ
һƪ: ͯdBʧl(f)ôί
һƪ: dBll(f)Ҫί