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消声材料
avia. sound absorbing material; sound absorbing materials
plast. acoustic material; quieter material
proj.manag. sound-deadening material
refrig. sound damping material
tech. sound-absorbent material; sound-absorbing material; sound-damping material
防,隔声材料
auto. soundproofing material
消声材料: 5 phrases in 2 subjects
Plastics2
Technology3