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- Usually, a large aperture lens will give better results. 若使用大光圈的镜头,效果当然更理想。
- The situations of multi-aperture and single aperture are compared, with the first case having higher nulling resolution than the second case. 另外，比较了单口径多被束天线阵及多口径多波束天线阵的自适应调零分辨率，多口径多波束天线阵比单口径多波束天线阵的调零分辨率高。
- Based on Collins formula and ABCD propagation matrix theory,the propagations of laser beams with different profiles through an aperture lens are analyzed and compared under the same laser beam power and initial beam width in this paper. 基于柯林斯公式和ABCD传输矩阵理论 ,在相同激光功率和初始束宽下 ,研究了不同空间分布光束通过聚焦光学系统的传输特性。
- Abstract: From the Helmholtz equation, the optical field analytical expression of an ultrashort pulse propagating through a small aperture lens was acquired with chromatic and spherical aberration. 摘 要： 从亥姆霍兹方程出发，考虑透镜的色差和球差，得到了超短脉冲经过小数值口径透镜后光场的解析表达式；
- From the Helmholtz equation, the optical field analytical expression of an ultrashort pulse propagating through a small aperture lens was acquired with chromatic and spherical aberration. 摘要从亥姆霍兹方程出发，考虑透镜的色差和球差，得到了超短脉冲经过小数值口径透镜后光场的解析表达式；
- From the propagation theory of partially coherent light, spectral anomalies and spectral switches of Gaussian Schell-model beams focused by an astigmatic aperture lens are studied. 从部分相干光的传输理论出发,研究了高斯谢尔模型光束通过光阑像散透镜聚焦的光谱异变和光谱开关。
- short focal length high aperture lens 短焦距强光力物镜
- Extended Field Elliptical Aperture Lens 可扩展扫描椭圆孔镜头
- Observant photographers have noticed that not all lenses are created equal: large aperture lenses show strong out-of-focus effects while small-aperture lenses lead simply to a softening of the image. 细心的摄影者会发现不是所有的镜头都是一样的：大光圈的镜头呈现强烈的失焦效果，而小光圈的镜头只是稍微的让图像柔化一些。
- Focal shifts of flattened Gaussian beams passing through an aperture lens 平顶高斯光束通过光阑透镜的焦移
- Propagation of laser beam with different profiles through an aperture lens 不同空间分布光束通过聚焦光学系统传输特性的比较
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
- A single lens in a pair of glasses; a monocle. 单片眼镜一对眼镜片中的一个单透镜；单片眼镜
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
- He got over the stream with a single leap. 他一跃就跳过了小溪。
- The bridge crosses the river in a single span. 河上那座桥是单跨桥。
- I have got a single - lens reflex . 我有架单镜头反射式照相机。
- Do you want a single or a return ticket? 你要单程票还是往返票?
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- I have had to work for every single penny I earned. 我挣的每一便士都是辛苦工作得来的。
