GB/T 21231.1-2018声学小型通风装置辐射的空气噪声和引起的结构振动的测量第1部分:空气噪声测量国家标准
英文:Acoustics—Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices—Par...
英文:Acoustics—Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices—Par...