英语词汇“masson disk”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	masson disk
释义	WordReference Random House Unabridged Dictionary of American English © 2024 Mas′son disk′ (mas′ən),USA pronunciation a white disk on which a series of concentric gray circles appear to vanish intermittently when the disk is rotated, used for testing a person's fluctuation of attention and visual threshold.
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