真钱信誉棋牌

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    依据GB/T 19889.1-2005(ISO 140-1:1997,IDT)建设,用于测量墙体、门、窗等官网构件的空气隔声性能。本实验室分发声室和接收室,其中接收室也是房中房结构。

 

 

    The sound insulation laboratory was built according to GB/T 19889.1-2005(ISO 140-1:1997,IDT), aiming at measuring the air sound insulation property of walls, doors, windows and other building structures. The laboratory is composed of sound generation room and sound reception room, in which the sound reception room is of the house-in-house structure.


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