Single vision lenses 单光镜片 ; 单光镜片儿
Single Vision Lenses SVLs 单光眼镜
Single Vision Corrective Lenses 眼科光学 ; 视力矫正用单焦点眼镜片
Single-vision hydrogel contact lenses 单焦水凝胶接触镜片
Single-vision spectacle lenses 单光框架眼镜
The lenses are available in single vision, varifocal and sun-lens forms. They need to be sprayed with a chemical solution every week to keep the fog-repellent surface working.
这种镜片有单光、变焦、太阳镜三种形式，使用时需要每周在镜面上喷洒一种化学溶剂，才能保持防雾表面持续有效。
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