标准名称:JIS A1440-1-2007 Acoustics -- Laboratory measurements of the reduction of transmitted impact sound by floor coverings on a solid standard floor -- Part 1 Method using standard light impact source
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JIS A1440-1-2007 Acoustics -- Laboratory measurements of the reduction of transmitted impact sound by floor coverings on a solid standard floor -- Part 1 Method
using standard light impact source
using standard light impact source
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