只是在最近几年里，视觉系统才被用于在填装牙膏管之前检查实际包装是否干净。
It is only in recent years that vision systems have been used to check whether the actual packaging is clean and safe before toothpaste tubes are filled.
视敏度检查被用于评价视觉系统的形觉功能，能较早地反映出疾病所引起的形觉功能的障碍。
The examination of visual acuity in assessing the form sense function of visual system can earlier reflect the disorder of form sense function caused by the disease.
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