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我们于1991年7月对记河市眼镜市场的卫生质量进行了调查。1眼镜完全合格率:在抽查的288块眼镜片中完全合格81块.合格率28.13%,180付成镜中,完全合格17付,合格率9.44%.镜片合格率大于成镜,说明在眼镜装配过程中存在严重问囹。Zg先应:抽查的镜片中屈光应符合标准的占
In July 1991, we conducted a survey on the hygiene quality of the eyewear market in Jihe City. 1 glasses completely pass rate: in the spot checks of 288 glasses completely qualified 81. Pass rate of 28.13%, 180 paid into the mirror, fully qualified 17 paid, the pass rate of 9.44%. The lens pass rate is greater than a mirror, indicating serious problems in the process of assembling glasses. Zg first should: Check the lens refraction should meet the standard accounted for