-> dBt(y)Ժ
ίdBt(y)ԺļҺ
rg2014-1-2 17:26:22 dBt(y)Ժ
dB˂Pĵľίt(y)ԺίdBt(y)ԺļҺ@}һֱ˂IJ҂֪ҶԸ挦ӲԸᵽеĕrǛ]k҂ҪJ˽@Щ҂ҪԔĽBһ±ίdBt(y)ԺļҺ?
dBҲdһNԴXdBؓpߵĽdB߲עͿӇءôίdBt(y)ԺļҺ?
ҷdBsdBIJͬԌ»ߵĻ,ҲͬdB,DZdBеһNҲǰdB鳣ҊIJίdBt(y)ԺļҺ?XdBķ
1ˎίˎίdBЧ^÷㣬^ô_ˎкõįЧˌt(y)ˮƽҪߡͯ÷ˎdBίķʽһҪҎ(gu)t(y)Ժ,I(y)t(y)ָ·ˎĸýС
2ίһίXѪܻΡXXMBȮȿgίXx,пxˎίίdBt(y)ԺļҺ?(dB)M,Tl(f)صĴ̼Ԝpl(f)
3gίgίdB^Ҳܵ,dBߵA^gdBί,߀һЩˣҲoˎһЩl(f)YgdBί,mеİdBˣԲ,xgdBίǰһҪҎ(gu)ČI(y)t(y)Ժ,MЙzu
ίdBt(y)ԺļҺ@}͞ҽB@ڰdB҂߀кܶăҪ˽ģǧfܺ҂߅@Щ҂ΣļdB҂ҪIJ@ӿԏصdBdBίһ^Lڵ^̣һҪԳί
аdBĆ}ՈԃھҞ
һƪ: ΰdBt(y)Ժļ
һƪ: t(y)YίdBt(y)Ժ