The FWHM is the same for all point-sources in the image (if optical aberrations can be neglected).

如果光学系统引起的像差可以忽略，那么影响各星点的FWHM都将是一样的。

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With the stress increased, two peaks were split apparently and the FWHM broadening of the PL peaks appeared.

同时PL峰的半峰宽随着应力增加而逐渐加大。

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Finally given are our detailed work results. We get the FWHM and EE of the Yunnan Observatory 1m optical telescope.

最后给出的是试验步骤和最终结果，我们初步得到了评价天文光学望远镜成像质量的综合指标。

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