The third lens group (G3) comprises at least a negative meniscus lens (L33) and a positivelens (L32) sequentially from a side closest to images.
第3透镜组（G3），从最靠 像侧起依次至少具有负的弯月形的透镜（L33）、和正透镜（L32）。
2
This action lets you expand the lens of the mind, therefore you are able to see more positive aspects of your current reality.
这个动作可以扩展你的视角，然后你就能看到现实的更多积极面。
3
We present a novel confocal laser method (CLM) for precise testing of the dioptric power of both positive and negative intraocular lens (IOL) implants.