求翻译：光学玻璃作为一种高功能材料, 但它在加工时仍然不可避免的会产生带有空间频率起伏的面形误差光学表面，那么这样的光学表面会对光束质量产生怎么样的影响。是什么意思？

The optical glass as a high-functional materials, but it is still in the processing time will inevitably produce the optical surface of the surface error with the ups and downs of the spatial frequency, then the optical surface will beam quality of what kind of impact.

optical glass as a highly versatile material, but it is still in the processing produces an inevitable ups and downs with a spatial frequency of the optical surface face-error, then, it will be the optical surface of the beam quality produce what effects.

The optical glass takes one kind of high Functional Materials, but it when processing still inevitable could produce has the spatial frequency fluctuation face shape error optics surface, then how influence such optics surface could have to the light beam quality.

Glass as a highly functional materials, but it is still inevitable processing with frequency fluctuations of space surface profile error of optical surfaces, then the optical surface effect can have a kind of beam quality.

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