The inner side of the rubber ring glasses frame is provided with a groove which is used for fixing the shortsighted lenses.

此种橡胶镜框的内侧有凹槽，可固定近视镜片。

youdao

The inner side of the rubber ring glasses frame is provided with a groove which is used for fixing the shortsighted lenses.

此种橡胶镜框的内侧有凹槽，可固定近视镜片。

youdao