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rwlle001 发表于 2021-6-3 09:23:23

ISO 3745 AMD 1-2017 Acoustics — Determination of sound power levels and sound

ISO 3745 AMD 1-2017 Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms

admin 发表于 2021-6-9 16:28:26

谢谢您的分享，金币已奖励！

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