Operators doing the inspection should pass regular eye-sight checks, with spectacles if worn, and be allowed frequent breaks from inspection.
进行目视检查的操作人员要定期进行视力检查，可以戴眼镜，并允许经常间断检查。
Operators doing the inspection should pass regular eye-sight checks, with spectacles if worn, and be allowed frequent breaks from inspection.
进行目视检查的操作人员要定期进行视力检查，可以戴眼镜，并允许经常间断检查。
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