听力试验 meaning in Chinese

audibility test

Sound system equipment - part 13 : listening tests on loudspeakers
声音系统设备.第13部分:扬声器上的听力试验
Acoustics - audiometric test methods - sound field audiometry with pure tone and narrow - band test signals
声学.听力试验方法.纯音和窄带试验信号声场测听方法
Acoustics - audiometric test methods - part 2 : sound field audiometry with pure tone and narrow - band test signals ; identical with iso 8253 - 2 : 1992
声学.听力试验方法.第2部分:纯音和窄频带信号声场测