poor wow&flutter 抖摆率差

wow flutter meter [电讯] 抖晃仪

wow-flutter meter 抖晃仪

wow and flutter 抖晃 ; 抖晃动率 ; 速度不均性 ; 抖晃率

wow-flutter 晃抖度

flutter & wow 抖晃度

Wow and flutter test record 抖晃度测试唱片

flutter and wow 震颤 ; 速度不均匀性

wow and flutter meter 声抖晃测试仪