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noise insulation; soundproofing; noise protection; sound proofing | |||
acoustical cover | |||
sound-control | |||
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 : 4 phrases in 2 subjects |
Construction | 3 |
Natural resourses and wildlife conservation | 1 |