您要查找的是不是：
- Focusing properties of Gaussian beams passing through a bifocal lens[J]. 引用该论文 季小玲;季小玲;吕百达.
- Franklin's bifocal lens spectacles 弗兰克林(氏)眼镜:双焦点眼镜
- Focusing properties of Gaussian beams passing through a bifocal lens 高斯光束通过双焦透镜的聚焦特性
- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- Some adjustment of the lens may be necessary. 可能有必要调节一下镜头。
- Do you have soft contact lens care product? 有没有软性隐型眼镜保养用品？
- He uses lens to make things appear clearer. 他用镜片以便看东西更清楚些。
- The lens is often used to make telescopes. 镜片常被用来做成望远镜。
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- complete vision bifocal lens 全视双焦点透镜
- bifocal lens 双焦镜,双焦点透镜,双焦透镜
- blended bifocal lens 融合(无形)双焦点透镜
- executive bifocal lens 磨制双焦点透镜
- one-piece bifocal lens 单块双焦点透镜
- solid bifocal lens 整块双焦点透镜
- solid upcurve bifocal lens 上弯形整块双焦点透镜
- The camera lens must be screened from direct sunlight. 照相机的镜头不可受到阳光的直射。
- depressed bifocal lens 低凹双焦点透镜
- split bifocal lens 劈开双焦点透镜
- cement bifocal lens 粘合双焦点透镜
