acceptable quality level of process average AQL
AOQL Average Output Quality Level
average effectiveness level
Average equivalent sound level
average level crossing rate
average outgoing quality level
average picture level
平均像阶
平均图像电平
平均图像位阶
平均图象电平
平均图画位准
average quality level line
average sound pressure level
average voice level of a grade in surface
Index of average energy level for valence electron
level of average equipment