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- Compared with the stigmatic lens,the astigmatism gives rise to a shift of the position of on-axis maximum intensity,and reduces the intensity at the real focal point. 与没有像散情况比较,像散使部分相干光轴上最大光强的位置移动,导致实际焦点的光强减小。
- 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。
- stigmatic lens 无散光透镜
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- 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。
- Style with 2 acute stigmatic lobes. 花柱具2锐尖的柱头的裂片。
- Style short, apically 3-lobed, adaxially stigmatic. 花柱短，顶部3浅裂，正面柱头。
- 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。
- Styles 3, short, persistent, stigmatic adaxially. 花柱3，短，宿存，柱头正面。
- Style with adaxial stigmatic surface. 花柱具正面的柱头的表面。
- 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 lens hood is used to cover up the lens. 遮光罩是用来遮盖镜头的。
- The lens of the eye accommodate to distance. 眼球晶状体能根据距离进行调节。
- I prefer a built-in zoom lens, like the one I have. 我喜欢如我所有的那种固定式变焦镜头。
