Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/47a00e8c7658a21eb9caf19ef531c8d5.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 earphone coupler例句_earphone coupler英汉例句_earphone coupler双解例句_甲百汇小鸡词典
Electroacoustics. Simulators of human head and ear. Part 3 : acoustic coupler for the calibration of supra-aural earphones used in audiometry. 电声学。人头和耳模拟器。第3部分：用于听力仪的高级听力耳机校正用听力耦合器。