(a) Ophthalmology a large card printed with rows of letters of decreasing size for use in testing visual acuity (cf. Snellen, n.); (b) Television a…
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| 释义 | the world > health and disease > healing > ophthalmology or optometry > [noun] > kinds of eye-test > card used in testing sight (2) test card1892 (a) Ophthalmology a large card printed with rows of letters of decreasing size for use in testing visual acuity (cf. Snellen, n.); (b) Television a… test chart1910 = test card n. (a). |
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