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- 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。
- concentric lens 同心透镜
- The camera lens must be screened from direct sunlight. 照相机的镜头不可受到阳光的直射。
- A close- up lens is ideal for taking close- up picture. 近摄镜用来拍特写照片最理想。
- In this operation the surgeons implant a new lens (in the eye). 医生在这次手术中给病人(眼球)植入了新的水晶体。
- The centres of concentric circles coincide. 同心圆的圆心是一个。
- The figure bounded by and containing the area between two concentric circles. 圆环域以两个同心圆为界的图形或两圆之间包括的图形
- It consists of a pair of concentric cylinder. 它由一对同轴的圆筒组成。
- The gunsight has an infrared lens for night vision. 射击瞄准器装有用于夜间视力的红外线镜头。
- Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样,双凹透镜也可以缩小。
- The centers of concentric circles coincide. 同心圆的圆心重合。
- Concentric circles were made in the water. 同心圆的波纹在水面上散开。
- The lens hood is used to cover up the lens. 遮光罩是用来遮盖镜头的。
- Concentric spheres are parallel. 同心球面是平行的。
- The lens of the eye accommodate to distance. 眼球晶状体能根据距离进行调节。