辨别阈限
Threshold of discrimmation
察觉阈限对比
perceived threshold contrast
差别阈限
Difference or differential limen
difference limen
dl
Differential or difference limen
differential limen
differential threshold
差别阈限法
differential limen method
感觉阈限
sensory threshold
Sense threshold
sensation threshold
sensory limen
sensory limit
Sensory(or sense)limen or threshold
绝对明度阈限
absolute brilliance limen