̓MC(j)ע(c)-Ҋ} W(wng)վƏV} W(wng)վƏV} | |||||||
ٶȸr(ji)(w)Q
SI(y)εJ(rn)齨˾W(wng)վϢͿ̄(w)@һN`W(wng)վҪƏVLҪLÑǾW(wng)վƏVr(ji)Чķʽ Ո(qng)(qun)y(tng)Ӌ(j)(sh)(j) 1(j)cnnic20017µ{(dio)飺 51.3%Ї(lin)W(wng)Ñ(jng)ʹ 57.5%Ї(lin)W(wng)Ñ֪¾W(wng)վҪ; 2(j)Jupiter Media Metrix20017µĽy(tng)Ӌ(j)47%M(fi)ͨ^팤ҺُIھa(chn)Ʒ M(fi)ھُr(sh)Үa(chn)Ʒķͱǣ ݔa(chn)Ʒ 28% ֱLW(wng)̵W(wng)ַ 23% ݔ̘(bio) 9% ݔ̵ 5% Lُl 5% 3(j)Georgiag(sh)оԺ{(dio)飺80(zhn)ُIƷʹҵҪĮa(chn)Ʒ LÑܸL߾ИO(qing)ᘌ(du)(dng)ľW(wng)վģ(du)̘I(y)W(wng)վăr(ji)ֵҲe Ҫ F(xin)˽ľW(wng)վҪ˽ҪԆ Ƿ^@ӵĽ(jng)vijһвϢY(ji)V10000lP(gun)Ϣ鿴һlҲͿǰ^10l20log˵21l10000lϢвЃr(ji)ֵă(ni) ^fڙzY(ji)ĵ21l10000lУпܣ@Nӛ(du)ľW(wng)վ߀x͵߀HHվc(din)Lʧ(yn)صǣW(wng)퓙z֮ǰęzY(ji)Ϣɱҕĸ(du)ڸ(du)֮LLĸ(du)֣Lߌ(du)(du)վc(din)MͲLվc(din) y(tng)Ӌ(j)Y(ji) 65-70%ľW(wng)c(din)Y(ji)ĵһ퓼ǰ10l 20-25%ľW(wng)c(din)Y(ji)ĵڶ퓼11-20l 3-4%ľW(wng)c(din)еģdzǧfY(ji) ǰ20λԽǰԽ ٶȸr(ji)(w)(yng)r(sh) ھW(wng)վ;W(wng)֮gһ҂Ƴ˰ٶȸr(ji)(w) ͨ^҂(w)(yu)W(wng)퓵M(jn)ЇҪǰ̵ĕr(sh)gAôֱÑLĶȡF̘I(y)ٙC(j) ͨ^ٶȇ(yn)Č˙C(j)ֻ(yu)ľW(wng)퓲ǰ@ʹY(ji)|(zh)õVW(wng)õõw(yn)
|
|||||||
>> P(gun) | |||||||
]P(gun) |