diffraction-limited

The system has the advantage of light weight, simply structure and near diffraction limited imaging quality.

该系统重量轻, 结构简单,成像质量接近衍射极限.

Traditional optical disc recording technology has limited storage density and low information transfer rate due to laser diffraction spot size limitation ( micron order of magnitude). A new type of 3-D storage technology is proposed in thesis.

本文基于传统的光盘记录技术因受激光衍射光斑极限的限制（微米数量级），存储密度有限，且其信息传输速率较低，故提出一种新型的三维存储技术。

The obvious question becomes: is this diffraction limited or not?

现在问题变成: 这个是不是衍射极限的作用?

The obvious question becomes: is this diffraction limited or not? The answer is both.

现在问题变成: 这个是不是衍射极限的作用? 答案是共同的作用.

This optic is diffraction limited at the center field but not at the edge.

衍射极限只在中心部分起了作用而不是边缘.