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The problem:
most of the old are not likely to turn on the light in the daytime , unabling them to recognize the characters on the newspaper or medicine bottles,even when they use magnifier
Solution:
most of the old are not likely to turn on the light in the daytime , unabling them to recognize the characters on the newspaper or medicine bottles,even when they use magnifier
Fuzhou university
xiamen, China
lin ziwei,
Fuzhou university
