This paper, in detail, introduced how to study the rule of image construction for biconvex lens by using the method of vision difference.

本文详细地介绍了如何运用视差现象研究凸透镜的成象规律。

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But mathematics alone suggests the difference would be astounding, said Jay Neitz, a renowned color vision researcher at the Medical College of Wisconsin.

然而，威斯康星医学院的著名色视觉专家杰·奈茨说，单从数学上解释，其差别会令人震惊。

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Those creatures have long had four-color vision, but a key difference is that their fourth type of color detector is in the high-frequency ultraviolet range, beyond where humans can see.

这些动物早已拥有四色觉，但关键的区别是，他们的第四种颜色位于高频的紫外线区域，在人类可视范围之外。

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That could indicate the drug is bringing about a clinically important difference in vision.

FORBES: Magazine Article

And I think that is a profound difference between his vision and the Republican vision.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,

He united numerous business entities within Hallmark in support of a new brand, Hallmark Business Connections, and gave them the tools and the vision to truly make a difference.

FORBES: CIOs: Having Your Cake and Eating It Too