为了证明他的观点，他利用相同的照明条件，为一位模特的同一面部表情拍摄了一组肖像照，但是每照一张就更换一种镜头。
To prove his point, he took a series of portraits, using the same model's facial expression and the same lighting - but each time changing the lens.
我们认为这个镜头构成了重要的时评观点——她和同学们在学校里遇难。
We thought this made an important editorial point - she and her classmates were killed in the middle of their class.
从自动测量用光学镜头的使用特点出发，提出用其直边响应函数作为最终评价标准的观点。
From the usage characteristics of automatic testing optical lens, a viewpoint of straight-edge response function as final evaluation criterion is proposed in this paper.
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