acoustic pressure level meaning in English
声压级
Examples
- We get and analysis the data of the reverberation , noise and acoustic pressure level of the conference hall and lecture hall in some northern university in measurement
实测和分析了北方某大学的甲报告厅和乙会议厅的混响时间、背景噪声、声场级等数据。 - Through redesigning of pipe system to alter its character and using the ways to isolate vibration and reduce vibration , it is yielded very good results of reducing the vibration and noise . in some points the acoustic pressure level drops very much , such as in the standard point of number one pump the acoustic pressure level drops 15db ( a ) and in the standard point of cistern also drops 15db ( a ) , and in the highest point of the acoustic pressure before redesign drops from 105db ( a ) to 44db ( a ) , and in the second floor the acoustic pressure level have reached the requirment
通过对管道结构的改造，减振和隔振措施的有效使用，使供水系统的振动和噪声得到了有效的控制：使一号泵前的标准点和蓄水池前标准点的噪声声压级都降低了15db ( a ) ，管道上测点的振动量降低了90 ；二楼居民门外的噪声从55db ( a )降到25db ( a ) ，远低国家标准35db ( a ) ；在改造前噪声最大点西侧蓄水池的噪声也由105db ( a )降到44db ( a ) 。