Measurement of airborne noise emitted by machines; enveloping surface method; still picture and motion-picture projectors
German title
Geräuschmessung an Maschinen; Luftschallemission, Hüllflächen-Verfahren; Steh- und Laufbildprojektoren
Publication date
1989-10
Original language
German
Pages
4
Publication date
1989-10
Original language
German
Pages
4
DOI
https://dx.doi.org/10.31030/2331731
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ICS
17.140.20,
37.040.10,
37.060.10
DOI
https://dx.doi.org/10.31030/2331731
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