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不同种族学生视力的差异,国内已有文献报导。为了探讨朝汉两个种族间屈光状态的差异,为保护学生特别是朝族学生的视力提供科学依据,我们于1989年6月与和龙县卫生防疫站学校卫生科一起,在和龙镇对两所小学、四所中学的学生进行了屈光状态调查,现将结果报
Differences in sight between students of different races have been reported in the country. In order to explore the differences between the refractions between the two races in the Chao-Han Dynasty and to provide scientific basis for protecting the vision of students, especially the students of the Dao ethnic group, we together with the School Health Division of the Health and Epidemic Prevention Station of Helong County in June 1989 in Helong Town Conducted a survey of the refractive status of students from two elementary schools and four secondary schools and reported the results