GOST 31249-2004 Acoustics Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance《声学 声学评价其声学性能用工作室内空.pdf

《GOST 31249-2004 Acoustics Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance《声学 声学评价其声学性能用工作室内空.pdf》由会员分享，可在线阅读，更多相关《GOST 31249-2004 Acoustics Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance《声学 声学评价其声学性能用工作室内空.pdf（24页珍藏版）》请在麦多课文档分享上搜索。

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2、3fG24cG24aG242G251G23fG24bG244G248G23fG248G249G242G24bG23aG247G242G23fG3G245G242G247G242G243G3G249G24aG248G24bG24cG24aG23aG247G24bG24cG23cG23fG247G247G248G23dG248G24aG23aG24bG249G24aG23fG23eG23fG245G23fG247G242G259G3G241G23cG24dG244G23aG3G23cG3G24aG23aG23bG248G251G242G24fG249G248G246G23fG253G23fG247

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4、0G48G57G55G4cG46G3G47G48G56G46G55G4cG53G57G4cG52G51G3G52G49G3G56G53G44G57G4cG44G4fG3G56G52G58G51G47G3G47G4cG56G57G55G4cG45G58G57G4cG52G51G46G58G55G59G48G56G3G4cG51G3G5aG52G55G4eG55G52G52G50G56G3G49G52G55G3G48G59G44G4fG58G44G57G4cG52G51G3G52G49G3G57G4bG48G4cG55G3G44G46G52G58G56G57G4cG46G44G4fG3G53G48

5、G55G49G52G55G50G44G51G46G48GbG30G32G27GcG242G261G25eG25aG267G262G25fG3G268G26eG262G270G262G25aG265G276G267G268G25fG246G23fG240G23dG248G24bG24dG23eG23aG24aG24bG24cG23cG23fG247G247G255G243G3G24bG248G23cG23fG24cG3G249G248G3G24bG24cG23aG247G23eG23aG24aG24cG242G241G23aG250G242G242GfG3G246G23fG24cG24aG248

6、G245G248G23dG242G242G3G242G3G24bG23fG24aG24cG242G24eG242G244G23aG250G242G242GbG246G23dG24bGcG2cG31G37G28G35G36G37G24G37G28G3G26G32G38G31G26G2cG2fG3G29G32G35G3G36G37G24G31G27G24G35G27G2cG3dG24G37G2cG32G31GfG3G30G28G37G35G32G2fG32G2aG3cG3G24G31G27G3G26G28G35G37G2cG29G2cG26G24G37G2cG32G31GbG2cG36G26GcG

7、23bG241G3G14G15Gb2G15G13G13G16G12G15G15G17G249G26aG25fG25eG262G26bG265G268G25cG262G25fG250G25fG265G262GfG3G268G26bG267G268G25cG267G275G25fG3G269G26aG262G267G270G262G269G275G3G262G3G268G26bG267G268G25cG267G268G263G3G269G268G26aG279G25eG268G264G3G269G26aG268G25cG25fG25eG25fG267G262G279G3G26aG25aG25bG2

8、68G26cG3G269G268G3G266G25fG260G25dG268G26bG26dG25eG25aG26aG26bG26cG25cG25fG267G267G268G263G3G26bG26cG25aG267G25eG25aG26aG10G26cG262G261G25aG270G262G262G3G26dG26bG26cG25aG267G268G25cG265G25fG267G275G3G23dG248G24bG24cG3G14G11G13Gb2G1cG15G3Ga9G246G25fG260G25dG268G26bG26dG25eG25aG26aG26bG26cG25cG25fG267

9、G267G25aG279G3G26bG262G26bG26cG25fG266G25aG3G26bG26cG25aG267G25eG25aG26aG26cG262G261G25aG270G262G262G11G3G248G26bG267G268G25cG267G275G25fG3G269G268G265G268G260G25fG10G267G262G279GaaG3G262G3G23dG248G24bG24cG3G14G11G15Gb2G1cG1aG3Ga9G246G25fG260G25dG268G26bG26dG25eG25aG26aG26bG26cG25cG25fG267G267G25aG2

10、79G3G26bG262G26bG26cG25fG266G25aG3G26bG26cG25aG267G25eG25aG26aG26cG262G261G25aG270G262G262G11G3G24bG26cG25aG267G25eG25aG26aG26cG275G3G266G25fG260G25dG268G26bG26dG25eG25aG26aG26bG26cG25cG25fG267G267G275G25fGfG269G26aG25aG25cG262G265G25aG3G262G3G26aG25fG264G268G266G25fG267G25eG25aG270G262G262G3G269G26

11、8G3G266G25fG260G25dG268G26bG26dG25eG25aG26aG26bG26cG25cG25fG267G267G268G263G3G26bG26cG25aG267G25eG25aG26aG26cG262G261G25aG270G262G262G11G3G249G268G26aG279G25eG268G264G3G26aG25aG261G26aG25aG25bG268G26cG264G262GfG3G269G26aG262G267G279G26cG262G279GfG3G269G26aG262G10G266G25fG267G25fG267G262G279GfG3G268G

12、25bG267G268G25cG265G25fG267G262G279G3G262G3G268G26cG266G25fG267G275GaaG24bG25cG25fG25eG25fG267G262G279G3G268G3G26bG26cG25aG267G25eG25aG26aG26cG25fG14G3G249G248G23eG23dG248G24cG248G23cG245G23fG247G3G248G26cG264G26aG275G26cG275G266G3G25aG264G270G262G268G267G25fG26aG267G275G266G3G268G25bG273G25fG26bG26

13、cG25cG268G266G3Ga9G247G25aG26dG271G267G268G10G262G26bG26bG265G25fG25eG268G25cG25aG26cG25fG265G276G26bG264G262G263G3G270G25fG267G26cG26aG3G264G268G267G26cG26aG268G10G265G279G3G262G3G25eG262G25aG25dG267G268G26bG26cG262G264G262G3G26cG25fG26fG267G262G271G25fG26bG264G262G26fG3G26bG262G26bG26cG25fG266GaaG

14、3G267G25aG3G268G26bG267G268G25cG25fG3G26bG268G25bG26bG26cG25cG25fG267G267G268G25dG268G3G25aG26dG26cG25fG267G26cG262G271G267G268G25dG268G3G269G25fG26aG25fG25cG268G25eG25aG3G26bG26cG25aG267G25eG25aG26aG26cG25aGfG3G26dG264G25aG10G261G25aG267G267G268G25dG268G3G25cG3G269G26dG267G264G26cG25fG3G17G15G3G23c

15、G247G23fG24bG23fG247G3G23dG268G26bG26bG26cG25aG267G25eG25aG26aG26cG268G266G3G24aG268G26bG26bG262G262G16G3G249G24aG242G247G259G24cG3G246G25fG260G25dG268G26bG26dG25eG25aG26aG26bG26cG25cG25fG267G267G275G266G3G26bG268G25cG25fG26cG268G266G3G269G268G3G26bG26cG25aG267G25eG25aG26aG26cG262G261G25aG270G262G26

16、2GfG3G266G25fG26cG26aG268G265G268G25dG262G262G3G262G3G26bG25fG26aG26cG262G26eG262G264G25aG270G262G262G3GbG269G26aG268G10G26cG268G264G268G265G3G28bG3G15G19G3G268G26cG3G1bG3G25eG25fG264G25aG25bG26aG279G3G15G13G13G17G3G25dG11GcG241G25aG3G269G26aG262G267G279G26cG262G25fG3G269G26aG268G25dG268G265G268G26b

17、G268G25cG25aG265G262G1dG244G26aG25aG26cG264G268G25fG3G267G25aG262G266G25fG267G268G25cG25aG267G262G25fG3G26bG26cG26aG25aG267G275G269G268G3G246G244G3GbG242G24bG248G3G16G14G19G19GcG3G13G13G17Gb2G1cG1aG244G268G25eG3G26bG26cG26aG25aG267G275G3G269G268G3G246G244G3GbG242G24bG248G3G16G14G19G19GcG3G13G13G17Gb

18、2G1cG1aG24bG268G264G26aG25aG273G25fG267G267G268G25fG3G267G25aG262G266G25fG267G268G25cG25aG267G262G25fG267G25aG270G262G268G267G25aG265G276G267G268G25dG268G3G268G26aG25dG25aG267G25aG3G269G268G26bG26cG25aG267G25eG25aG26aG26cG262G261G25aG270G262G262G23aG261G25fG26aG25bG25aG263G25eG260G25aG267G23aG26aG26

19、6G25fG267G262G279G23bG25fG265G25aG26aG26dG26bG276G244G25aG261G25aG26fG26bG26cG25aG267G244G275G26aG25dG275G261G26bG26cG25aG267G246G268G265G25eG268G25cG25aG24aG268G26bG26bG262G263G26bG264G25aG279G3G24eG25fG25eG25fG26aG25aG270G262G279G24cG25aG25eG260G262G264G262G26bG26cG25aG267G24dG261G25bG25fG264G262G

20、26bG26cG25aG267G24dG264G26aG25aG262G267G25aG24G3dG24G30G25G3cG2eG3dG2eG2aG30G27G35G38G37G2dG38G3dG38G24G23aG261G26bG26cG25aG267G25eG25aG26aG26cG23aG26aG266G26bG26cG25aG267G25eG25aG26aG26cG23dG268G26bG26bG26cG25aG267G25eG25aG26aG26cG3G24aG25fG26bG269G26dG25bG265G262G264G262G3G23bG25fG265G25aG26aG26dG

21、26bG276G23dG268G26bG26bG26cG25aG267G25eG25aG26aG26cG3G24aG25fG26bG269G26dG25bG265G262G264G262G3G244G25aG261G25aG26fG26bG26cG25aG267G244G275G26aG25dG275G261G26bG26cG25aG267G25eG25aG26aG26cG246G268G265G25eG268G25cG25aG10G24bG26cG25aG267G25eG25aG26aG26cG23dG268G26bG26bG26cG25aG267G25eG25aG26aG26cG3G24a

22、G268G26bG26bG262G262G24cG25aG25eG260G262G264G26bG26cG25aG267G25eG25aG26aG26cG24dG261G26bG26cG25aG267G25eG25aG26aG26cG23dG268G26bG269G268G26cG26aG25fG25bG26bG26cG25aG267G25eG25aG26aG26cG3G24dG264G26aG25aG262G267G275G17G3G24dG24cG23cG23fG24aG240G23eG23fG247G3G242G3G23cG23cG23fG23eG23fG247G3G23cG3G23eG

23、23fG243G24bG24cG23cG242G23fG3G249G26aG262G264G25aG261G268G266G3G24eG25fG25eG25fG26aG25aG265G276G267G268G25dG268G3G25aG25dG25fG267G26cG26bG26cG25cG25aG3G269G268G3G26cG25fG26fG267G262G271G25fG26bG264G268G266G26dG26aG25fG25dG26dG265G262G26aG268G25cG25aG267G262G278G3G262G3G266G25fG26cG26aG268G265G268G25

24、dG262G262G3G268G26cG3G16G14G3G266G25aG279G3G15G13G13G18G3G25dG11G3G28bG3G14G17G17G10G26bG26cG18G3G247G25aG26bG26cG268G279G273G262G263G3G26bG26cG25aG267G25eG25aG26aG26cG3G279G25cG265G279G25fG26cG26bG279G3G266G268G25eG262G26eG262G270G262G26aG268G25cG25aG267G267G275G266G3G269G268G3G268G26cG267G268G272G

25、25fG267G262G278G3G264G3G266G25fG260G25eG26dG267G25aG26aG268G25eG267G268G266G26dG3G26bG26cG25aG267G10G25eG25aG26aG26cG26dG3G242G24bG248G3G14G17G15G18G1aG1dG15G13G13G14G3Ga9G23aG264G26dG26bG26cG262G264G25aG11G3G249G268G26bG26cG26aG268G25fG267G262G25fG3G262G3G269G25aG26aG25aG266G25fG26cG26aG262G271G25f

26、G26bG264G268G25fG3G268G269G262G26bG25aG267G262G25fG3G265G262G267G262G263G3G269G26aG268G26bG26cG26aG25aG267G26bG26cG25cG25fG267G267G268G10G25dG268G3G26aG25aG26bG269G26aG25fG25eG25fG265G25fG267G262G279G3G261G25cG26dG264G25aG3G25cG3G26aG25aG25bG268G271G262G26fG3G269G268G266G25fG273G25fG267G262G279G26fG

27、3G25eG265G279G3G268G270G25fG267G264G262G3G262G26fG3G25aG264G26dG26bG26cG262G271G25fG26bG264G262G26fG3G26fG25aG26aG25aG264G26cG25fG26aG262G26bG26cG262G264GaaG3GbG2cG36G32G14G17G15G18G1aG1dG15G13G13G14G3Ga9G24G46G52G58G56G57G4cG46G56G3Gb2G3G30G48G44G56G58G55G48G50G48G51G57G3G44G51G47G3G53G44G55G44G50G

28、48G57G55G4cG46G3G47G48G56G46G55G4cG53G57G4cG52G51G3G52G49G3G56G53G44G57G4cG44G4fG3G56G52G58G51G47G3G47G4cG56G57G55G4cG45G58G57G4cG52G51G3G46G58G55G59G48G56G3G4cG51G5aG52G55G4eG55G52G52G50G56G3G49G52G55G3G48G59G44G4fG58G44G57G4cG52G51G3G52G49G3G57G4bG48G4cG55G3G44G46G52G58G56G57G4cG46G44G4fG3G53G48G5

29、5G49G52G55G50G44G51G46G48GaaGcG11G3G248G26cG265G262G271G262G279G3G267G25aG26bG26cG268G279G273G25fG25dG268G3G26bG26cG25aG267G25eG25aG26aG26cG25aG3G268G26cG3G269G26aG262G266G25fG267G25fG267G267G268G25dG268G25cG3G267G25fG266G3G266G25fG260G25eG26dG267G25aG26aG268G25eG267G268G25dG268G3G26bG26cG25aG267G25

30、eG25aG26aG26cG25aG3G242G24bG248G3G14G17G15G18G1aG1dG15G13G13G14G3G26dG264G25aG261G25aG267G275G3G25cG268G3G25cG25cG25fG25eG25fG267G262G262G3G262G3G269G268G3G26cG25fG264G26bG26cG26dG3G25cG275G25eG25fG265G25fG267G275G3G264G26dG26aG26bG262G25cG268G266G19G3G23cG23cG23fG23eG23fG247G3G23cG249G23fG24aG23cG2

31、55G23fG242G267G26eG268G26aG266G25aG270G262G279G3G268G3G25cG25cG25fG25eG25fG267G262G262G3G25cG3G25eG25fG263G26bG26cG25cG262G25fG3GbG269G26aG25fG264G26aG25aG273G25fG267G262G262G3G25eG25fG263G26bG26cG25cG262G279GcG3G267G25aG26bG26cG268G279G273G25fG25dG268G3G26bG26cG25aG267G25eG25aG26aG26cG25aG3G269G26d

32、G25bG265G262G264G26dG10G25fG26cG26bG279G3G25cG3G26dG264G25aG261G25aG26cG25fG265G25fG3Ga9G247G25aG270G262G268G267G25aG265G276G267G275G25fG3G26bG26cG25aG267G25eG25aG26aG26cG275GaaG242G267G26eG268G26aG266G25aG270G262G279G3G268G25bG3G262G261G266G25fG267G25fG267G262G279G26fG3G264G3G267G25aG26bG26cG268G27

33、9G273G25fG266G26dG3G26bG26cG25aG267G25eG25aG26aG26cG26dG3G269G26dG25bG265G262G264G26dG25fG26cG26bG279G3G25cG3G26dG264G25aG261G25aG26cG25fG265G25fG3GbG264G25aG26cG25aG265G268G25dG25fGcGa9G247G25aG270G262G268G267G25aG265G276G267G275G25fG3G26bG26cG25aG267G25eG25aG26aG26cG275GaaGfG3G25aG3G26cG25fG264G26

34、bG26cG3G262G261G266G25fG267G25fG267G262G263G3Gb2G3G25cG3G262G267G26eG268G26aG266G25aG270G262G268G267G267G275G26fG3G26dG264G25aG261G25aG26cG25fG265G279G26fG3Ga9G247G25aG270G262G268G267G25aG265G276G267G275G25fG26bG26cG25aG267G25eG25aG26aG26cG275GaaG11G3G23cG3G26bG265G26dG271G25aG25fG3G269G25fG26aG25fG

35、26bG266G268G26cG26aG25aG3G262G265G262G3G268G26cG266G25fG267G275G3G267G25aG26bG26cG268G279G273G25fG25dG268G3G26bG26cG25aG267G25eG25aG26aG26cG25aG3G26bG268G268G26cG25cG25fG26cG26bG26cG25cG26dG278G273G25aG279G3G262G267G26eG268G26aG10G266G25aG270G262G279G3G25bG26dG25eG25fG26cG3G268G269G26dG25bG265G262G2

36、64G268G25cG25aG267G25aG3G25cG3G262G267G26eG268G26aG266G25aG270G262G268G267G267G268G266G3G26dG264G25aG261G25aG26cG25fG265G25fG3Ga9G247G25aG270G262G268G267G25aG265G276G267G275G25fG3G26bG26cG25aG267G25eG25aG26aG26cG275GaaG8bG3G24bG26cG25aG267G25eG25aG26aG26cG262G267G26eG268G26aG266GfG3G15G13G13G18G23cG

37、3G24aG268G26bG26bG262G263G26bG264G268G263G3G24eG25fG25eG25fG26aG25aG270G262G262G3G267G25aG26bG26cG268G279G273G262G263G3G26bG26cG25aG267G25eG25aG26aG26cG3G267G25fG3G266G268G260G25fG26cG3G25bG275G26cG276G3G269G268G265G267G268G26bG26cG276G278G3G262G265G262G3G271G25aG26bG26cG262G271G267G268G3G25cG268G26

38、bG269G26aG268G262G261G10G25cG25fG25eG25fG267GfG3G26cG262G26aG25aG260G262G26aG268G25cG25aG267G3G262G3G26aG25aG26bG269G26aG268G26bG26cG26aG25aG267G25fG267G3G25cG3G264G25aG271G25fG26bG26cG25cG25fG3G268G26eG262G270G262G25aG265G276G267G268G25dG268G3G262G261G25eG25aG267G262G279G3G25bG25fG261G3G26aG25aG261

39、G26aG25fG272G25fG267G262G279G3G24eG25fG25eG25fG26aG25aG265G276G267G268G25dG268G25aG25dG25fG267G26cG26bG26cG25cG25aG3G269G268G3G26cG25fG26fG267G262G271G25fG26bG264G268G266G26dG3G26aG25fG25dG26dG265G262G26aG268G25cG25aG267G262G278G3G262G3G266G25fG26cG26aG268G265G268G25dG262G262G23dG248G24bG24cG3G16G14

40、G15G17G1cGb2G15G13G13G17G2cG2cG24bG268G25eG25fG26aG260G25aG267G262G25fG14G3G248G25bG265G25aG26bG26cG276G3G269G26aG262G266G25fG267G25fG267G262G279G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3

41、G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G3G14G15G3G247G268G26aG266G25aG26cG262G25cG267G275G25fG3G26bG26bG275G265G264G262G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3

42、G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G3G14G16G3G24cG25fG26aG266G262G267G

43、275GfG3G268G269G26aG25fG25eG25fG265G25fG267G262G279G3G262G3G268G25bG268G261G267G25aG271G25fG267G262G279 G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G

44、11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G3G15G17G3G24aG25aG26bG269G26aG25fG25eG25fG265G25fG267G262G25fG3G261G25cG26dG264G25aG3G25cG3G269G268G266G25fG273G25fG267G262G262G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11

45、G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G3G15G3G3G3G3G17G11G14G3G248G25bG273G262G25fG3G269G268G265G268G260G25fG267G262G279G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G

46、11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G3G15G3G3G3G3G17G11G15G3G245G262G267G262G262G3G269G26aG268G26bG26c

47、G26aG25aG267G26bG26cG25cG25fG267G267G268G25dG268G3G26aG25aG26bG269G26aG25fG25eG25fG265G25fG267G262G279G3G261G25cG26dG264G25a G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3

48、G11G3G11G3G11G3G3G15G18G3G248G269G26aG25fG25eG25fG265G25fG267G262G25fG3G265G262G267G262G262G3G269G26aG268G26bG26cG26aG25aG267G26bG26cG25cG25fG267G267G268G25dG268G3G26aG25aG26bG269G26aG25fG25eG25fG265G25fG267G262G279G3G261G25cG26dG264G25aG11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11

49、G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G3G17G3G3G3G3G18G11G14G3G24cG26aG25fG25bG268G25cG25aG267G262G279G3G264G3G262G26bG26cG268G271G267G262G264G26dG3G272G26dG266G25aG11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G1

50、1G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G11G3G3G17G3G3G3G3G18G11G15G3G242G261G266G25fG26aG262G26cG25fG265G276G267G25aG279G3G25aG269G269G25aG26aG25aG26cG26dG26aG25aG11G