视阈

jìn xíng shì yù cè liáng

进行视阈测量

take measurement of visual area

píng jūn shì yù zhí

平均视阈值

the visual threshold

yóu rén de shì yù

游人的视阈

visitor's visual threshold

yán yǔ xíng wéi lǐ lùn shì yù xia

言语行为理论视阈下

in the light of speech act theory