Acoustics . sound absorbers for use in buildings . rating of sound absorption 声学.建筑物用吸音器.吸音额定值
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Acoustics - sound absorbers for use in buildings - rating of sound absorption 声学.建筑物用吸声装置.吸声定标
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Points out the key issues in noise control including the arrangement of sound absorber . noise transmission from machine room and duct and noise superposition 摘要指出了全空气空调系统噪声控制应注意的几个问题,如消声器设置、空调机房及风管传声、噪声叠加等。