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。
Differential rate is the core of occupational injury insurance mechanism, which has direct impact on the enthusiasm of enterprise to buy insurance and the preventing of occupational injure.
工伤保险差别费率是工伤保险费率机制的核心内容，它关系到企业参保的积极性及工伤保险预防效能的发挥。
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