“引力透镜已经是天文学家的工具箱里一件成熟的有竞争力的工具。”马歇尔说。
"Gravitational lensing has come of age as a competitive tool in the astrophysicist's toolkit," Marshall said.
这种用途的透镜有各种不同的名称：放大镜，简单放大镜或简单显微镜。
The lens so used is referred to variously as a magnifying glass, a simple magnifier or a simple microscope.
加拿大香脂：从香脂冷杉中获取的一种有粘性的，淡黄色的透明树脂，用作玻璃透镜的胶合剂或将标本粘贴在显微薄片上。
Canada balsam: a viscous yellowish transparent resin obtained from the balsam fir and used as a cement for glass lenses and for mounting specimens on microscopic slides.
加拿大香脂：从香脂冷杉中获取的一种有粘性的、淡黄色的透明树脂，用作玻璃透镜的胶合剂或将标本粘贴在显微薄片上。
Canada balsam: a viscous, yellowish, transparent resin obtained from the balsam fir and used as a cement for glass lenses and for mounting specimens on microscopic slides.
对于大口径精密投影光刻制版镜头来说，透镜的应力变形和中心误差对整个系统的成像质量有较大影响。
For big aperture's precision photolithographic plate-making lenses, the stress distortion and centering errors of lenses can make a bad effect on imaging quality.
目前，广泛使用的测量弱吸收的方法有光热偏转技术和表面热透镜技术。
At present, photothermal deflection technology and surface thermal lensing technology are widely applied in weak absorption measurement.
他们有透镜系统。利用透镜系统的想法最早是伽利略用来观测星星的。
They have a system of lenses, an idea first used to look at the stars by Galileo.
单谱线多元件透镜可以有不同的外形和材料，有玻璃的，二氧化硅的，蓝宝石的和钙氟化合物的。
Singlet and multielement lenses are available in a wide variety of configurations and materials, including glass, fused silica, sapphire, and calcium fluoride.
另外，有垂直和水平的透镜转移能力。
In addition, there is vertical and horizontal lens shift capability.
厚透镜的会聚性和发散性与其厚度有何关系？
What is the relation between gathering and scattering of thick lens and its thickness?
摄像系统不仅仅包含一个照相机，而更重要的，有一个透镜系统。
The camera system contains not only the detector but also, and very importantly, a lens system.
有希望地，以这篇文章，您学会了一少许更多关于怎样了解MTF图和并且得知方式客观地比较透镜根据您的具体需要。
Hopefully, with this article, you have learned a little more about how to understand MTF charts and also learned of a way to objectively compare lenses based on your specific needs.
本发明提供一种线式头及图像形成装置。本发明提供一种能够对在透光性基板的表面上形成有多个透镜的透镜阵列提高脱模性的技术。
The invention provides a line head and an image forming apparatus, a technology of improving release property for lens array with a plurality of lens on a surface of a transmissive substrate.
提高半导体激光器与光纤的耦合方法有很多，但目前比较广泛采用的就是光纤透镜法。
A lot of methods are used to improve the ability of coupling between semiconductor laser and optic fiber, but lensed fiber is more extensively applied at present.
同时，由于系统采用双折射透镜实现了共光路设计，使得本系统对振动和温漂有很好的抑制作用。
Besides, the system has strong ability of overcoming environmental disturbance due to its common path design with a birefringent lens.
我们有九种透镜供选择，适应您的不同需求。
WE have more than 9 types of lances, and it allow us meet different requirements.
圆周的对称点与球透镜的齐明点虽然有一个相同的表达式，但这两类不同范畴的共轭点有着内在的差异，分析这种差异，有利于更好地理解它们。
The circular symmetric point and the apalanatic point of spherical lens have one same expression, however the two kinds conjugate point are belong to difference category.
对有光斑尺寸要求的LED路灯透镜来说，该方法提供了一种简单有效的设计途径。
This method provides a simple and effective design approach for the spot requirements of LED street lights.
莱奥汽车照明主营各款双光透镜Q 5海拉5精工伟世通雾灯泪眼安定器疝气灯360led灯，厂家直销价格实惠有需要的联系！
Leo automotive lighting the main sections of the bifocal lens Q5 5 Seiko Hella Visteon fog tears Ballast HID 360 LED lights, factory direct, affordable Need to contact!
莱奥汽车照明主营各款双光透镜Q 5海拉5精工伟世通雾灯泪眼安定器疝气灯360led灯，厂家直销价格实惠有需要的联系！
Leo automotive lighting the main sections of the bifocal lens Q5 5 Seiko Hella Visteon fog tears Ballast HID 360 LED lights, factory direct, affordable Need to contact!
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