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ֲwSK13Ϳ

(li)ԴϾh(hun)Ƽ޹˾ r(sh)g2013-8-17  c(din)

K13Ϳ,ȫK13ֲwSͿ һֲwS۞ԭȫI(lng)ȼg(sh)ͿˇͿāӶ---Чһ---Aһ---Ϳ

a(chn)Ʒԣ

ðl(f)(zhun)g(sh)m҃⽨ȵı棺һסլС^·߅סլ·
eߙnסլƵW(xu)Уw^(l )d脡ԺS(chng)҃≦b˾иߙn
z܏Ч؜pٺ;ЧOɫSƽ׿ԽͿˢ(jin)
Һ͕ϼMИOѵĸ(zh)(yu)ıɫԼϻ䷽
ṩùA⾀(xin)ݗT๦ͿͿҪԭϞ{׶ӽYP(gun)h(hun)ˮͿϷӲϊAg(g)
gĤطֲ˾иЧ΢ͨ^(gu)p͸•,Ķͬr(sh)
߀в{ײ{ײϱM(mn)ֱ 1umҵС,Сɱ,׵
ݷeռwe50%,˾õ,ҌĿоԭ֪•
䵽Ϳr(sh)M(jn)϶Ȳ϶ȲĿ՚(dng)Ħ՚ճͿӃȲ
ğʹஔһ•DɟĶʹ•˥p•p_•Ŀ(jin)
f(shu)•ڲͬ|(zh)Ă^(gu)D.•Dĵ•Ăfǿ(zh)՚
c֮gƄ(dng)_һ•lc•ԴʎֱӵP(gun)ϵ•
lʳʬFҎ۵׃ʹ (tng)X(ju)ܵ(dng)܁yԴX(hu )ƣҺųM(jn)ʹ (tng)˸
혲 ؐDecibel DecibelBelʮ֮һ҂Belgɣؐؐ 
Decibelgɷؐ•ĉһr(sh)•􏊶ȣԷؐʾ•
6ؐ(sh)`C҃ȉ컨Ϳ˸Ϳz•ЧdzܵȫÑ(h)
һºu Ϳzoһ(g)moCĽh(hun)

Ҏ20/ͰFͰ(li)ͣۼ{ײϼҺȹۻ

ϡጄˮ

ϡጱhˮϡ?zhun)^(gu)20%

ʩͿˢͿ݁Ϳ

ˢͿhˮϡ?zhun)^(gu)20%

݁Ϳhˮϡ?zhun)^(gu)20%

Ϳhˮϡ?zhun)^(gu)20%

Ϳˢe8ƽ/α飩Ĥȴ30΢ף

ȣ25΢ף

ָ|ɣ25棺<2Сr(sh)

(sh)24Сr(sh)

ɣ10-20

ɫɫSՈxɫ

ͲϴΔ3000

ʩضȣ5

ʩˇͿāӶ---ͿЧһ---Aһ---Ϳ

棺ꎛͨL(fng)̎ضȞ5-25ȷA˪

|(zh)˜ʣGB/T9756-2001Ҙ˜

ȫܣχҘ˜GB18582-2001҃bbϰȫ˜


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