Indoornoise comes from the emission of outdoor noise and indoor sources of noise.
室内噪声来源于室外噪声辐射和室内声源。
2
To reduce indoornoise and protect the public health, actions such as monitoring, assessment, developing criteria and noise control techniques, should be taken.
应采取多种措施如监督监测、评价、制定标准、噪声控制技术等来降低室内噪声，保护人群健康。
3
Centrifugal glass cotton can be made into wallboard, ceiling, space sound-absorbing body etc, can be absorbed in a room, reduce doubled the reverberation time, reduce indoornoise.