 |
| |||
| noise insulation; soundproofing; noise protection; sound proofing | |||
| acoustical cover | |||
| protection against noise; soundproofing Reducing or eliminating reverberation in a room by placing sound-absorbing materials on the walls and ceiling | |||
| sound abatement; sound protection | |||
| noise restriction | |||
| sound control | |||
| noise abatement; noise prevention; protection against sound; sound insulation; sound reduction; noise control | |||
| Schallschutz: 3 phrases in 2 subjects |
| Construction | 2 |
| Natural resourses and wildlife conservation | 1 |