翻滚E宽的间隔距离图
翻滚E宽的间隔距离图
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翻滚E宽的间隔距离图
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Tumbling E Wide-spaced Distance Chart


Tumbling E distance chart with wide-spaced lines; line sizes range from 20/100 to 20/16 equivalent. Lines are labeled with 10' and 20' notations only. This chart can be used in Good-Lite's illuminated ESV1200, ESV1500, Model A+, Model A cabinet or hung on the wall. Chart size is 9" x 14" (22.9 cm x 35.6 cm).

This chart is recommended by the Texas Department of Public Health for vision testing and screening.

10 feet, 3 meters testing distance.


规格
600722
品牌
GOOD-LITE(美国)
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