红噪声

red noise  detail>>

冲击噪声校正

impulsive noise  detail>>

标准密度校验片

calibrated density reference scale  detail>>

磁头方位角校验片

magnetic azimuth alignment test film  detail>>

磁性抖动校验片

magnetic flutter film  detail>>

光刃均匀度校验片

scanning beam test film  detail>>

光学声迹校验片

photographic sound test film  detail>>

光学声迹位置校验片

photographic buzz test film  detail>>

焦点与方位角校验片

sound focus and alignment test film  detail>>

验片

all-weld metal test specimen  detail>>

声校正

acoustic correction  detail>>

检验片

test plate  detail>>

试验片

test film test piece test print  detail>>