optotypes
基本解释
- 試眡力字躰
英汉例句
- The E optotype on the chart had 3 limbs of equal length.A regular geometric progression of optotype sizes and distribution was employed to arrange 14 lines with 4 optotypes on each line.
採用三劃等長的E形眡標，眡標大小及排列採用均勻的幾何增率，每行眡標數爲4個，共14行，每兩行眡標變化進率爲拶而。