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| noise prevention; control of noise | |||
| sound-level control | |||
| noise suppression | |||
| noise abatement Measures to reduce noise at the source, to encourage quieter technologies or equipment or to prevent or reduce the propagation of sound. Measures may include the isolation and damping of vibration sources; the replacement of components with quieter parts and material; the enclosure of particularly noisy components; the provision of noise barriers, etc.; noise control The process to control the audible sound to an acceptable level | |||
| acoustic control | |||
| noise abatement; noise control | |||
| Lärmbekämpfung: 3 phrases in 2 subjects |
| Environment | 1 |
| Natural resourses and wildlife conservation | 2 |