Thus when we make an investigation of lens opacity of occupational injure or select students, pay attention to the presence of dots opacity n the lens of normal eyes.
当作职业性晶状体损害调查及挑选学员时应注意健眼有此种“晶状体点混”的存在。
Thus when we make an investigation of lens opacity of occupational injure or select students, pay attention to the presence of dots opacity n the lens of normal eyes.
当作职业性晶状体损害调查及挑选学员时应注意健眼有此种“晶状体点混”的存在。
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