DIN 45635-47:1985-06 Measurement of noise emitted by machines; airborne noise emission; enveloping surface method; chimneys

标准编号：DIN 45635-47:1985-06

英文标题：Measurement of noise emitted by machines; airborne noise emission; enveloping surface method; chimneys

德文标题：Geräuschmessung an Maschinen; Luftschallemission, Hüllflächen-Verfahren; Schornsteine

发布日期：1985-06

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