英语词汇“snellen test type”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	snellen test type
释义	Snellen test type Snel·len test type (snel'ĕn test tīp) One of a series of square black symbols employed in testing the acuity of distant vision; the letters vary in size in such a way that each one subtends a visual angle of 5' at a particular distance.
随便看	immatchable immaterial immaterial and missing power immaterial averment immaterialise immaterialism immaterial issue immaterialist immaterialists immaterialities immateriality immaterialize immaterialized immaterializes immaterializing immaterially immaterialness immateriate immature immature cataract immatured immature dendritic cells immature erythrocyte immature granulocyte immature infant

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Snellen test type