您要查找的是不是：
- positive meniscus lens 正弯月透镜
- aberration of the concave mirror is reduced by a meniscus lens. 用半月板镜头减少凹透镜的过失。
- AUTOCOLLIMATIC TESTING OF CONVEX CONICOID BY USING A MENISCUS LENS 凸二次曲面的透镜式自准检验
- meniscus lens, positive 弦月正透镜
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- Simple method of measuring the refractive index and radius of thin meniscus lens 测定新月形薄透镜折射率和曲率半径的简单方法
- 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。
- Her behaviour was a positive outrage. 她的行为残暴到了极点。
- I'm positive she told us to meet at noon. 我肯定她是告诉我们在中午见面。
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- This charge is a positive charge. 这个电荷是正电荷。
- She shows a very positive attitude to her work. 她工作态度非常积极。
- Can you be positive about what you hear? 你对听到的话有把握吗？
- The camera lens must be screened from direct sunlight. 照相机的镜头不可受到阳光的直射。
- He has a positive attitude towards life. 他对生活持有积极的态度。
- The number of positive numbers is infinite. 正数的数目是无穷的。
