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λãa(chn)Ʒչʾ -> o(w)CwSͿ

o(w)CwSͿ•ˇ

Ҫܣؽ^••Aȫh(hun)ʩЧ

أ^ᣩܣ
1A-8ϵПo(w)CwSͿa(chn)Ʒ(jng)yԇϵA-8=0.035w/m*kCõģ^ᣩ
2A- 8ϵПo(w)CwSͿa(chn)ƷmڏsYͽYχͿʹأ^ᣩγһ(g)]o(w)ӿpw˱

ܣAȼ

A-8ϵПo(w)CwSͿa(chn)ƷȻo(w)C(jng)zyAȼ@һԝM(mn)㡶܇(ch)܇(ch)ͣ܇(ch)(chng)OӋҎGB50067-97ȼҪϟo(w)ȔM

sYmԣ

A-8ϵПo(w)CwSͿa(chn)ƷǾһȵSwW(wng)CͿγw]Y@һԱCõĸ•p|(zh)ɴ󽵵•50mmӋ•=29dB

•ܣ

A-8ϵПo(w)CwSͿa(chn)ƷSwW(wng)Yʹ•˥p•25mmϵNRC=85%50mmϵNRC=100%

ȫh(hun)ԣ

A-8ϵПo(w)CwSͿa(chn)Ʒo(w)o(w)ζù׃(hu )ۉmwPˮCͭh(hun)zPHֵ7䓽Yo(w)g

A-8ϵПo(w)CwSͿa(chn)ƷͿֱ¶鱣Cõ•W(xu)ЧͿӱo(w)踽(zh)M(jn)вͬɫ̎^(gun)ԺbЧ

ɿճYܣ

A- 8ϵПo(w)CwSͿa(chn)ƷøYȵճYM(jn)и߉FͿʹÿһwSճYճB(jng)L̎ԳwԼc䓽YwճY܌(sh)̻L(fng)100Km/hL(fng)(jng)zyճYȡ7.4kpacwճYȡ30kpaASTME736˜

o(w)CwSͿ

o(w)CwSͿ
ƷQ(chng) o(w)CwSͿ
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久久久WWW成人免费毛片麻豆_成人免费在线观看毛片_9久久免费国产精品特黄国产蜜桃_国产精品日韩欧美一区二区视频