Method Subjective symptoms of the VDT operators under the Multi user system were measured before and after work in the field study. Visual indices were measured at 8:15, 9:15, 10:15, 11:15, or 12:15 a.

 
  • 方法對尋呼員上午工作前和工作后的主觀(guān)感覺(jué)進(jìn)行了測評,并分別在8 :15 、9 :15 、10 :15 、11 :15 、12 :15 對閃光融合頻率、動(dòng)態(tài)視力和屈光度等視覺(jué)指標進(jìn)行現場(chǎng)測試。
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