The optical diameter is an important factor to affect the visual quality postoperatively.

光学区设计也是影响术后视觉质量重要的因素；

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A typical optical telescope might have a diameter a few million times the wavelength of the light it is collecting.

一个典型的光学望远镜或许有一个可以收集几百万倍光波的直径。

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Optical fibres - Part 1-45: measurement methods and test procedures - Mode field diameter.

光纤。第1 - 45部分：测量方法和试验规程。模场直径。

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Panasonic's new compact 3D lens for the LUMIX G Micro System features two optical systems installed within the diameter of the lens mount, creating stereo images from the left and right lenses that are then processed with a 3D image processing system.

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The Siding Spring Observatory, located high in a remote area, is home to Australia's largest optical telescope, the 3.9m diameter Anglo-Australian Telescope, as well as several others.

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Besides having unusual optical properties and being very small each is just one-twentieth of a millimetre in diameter the lenses have another trick of particular relevance to micro-optical systems.

ECONOMIST: REPORTS