To explore the feature and meaning of primary contrast sensitivity function (CSF) abnormal.

目的探讨原发性对比视觉功能异常的特点与意义。

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Monet said: “Color owes its brightness to force of contrast rather than to its inherent qualities … primary colors look brightest when they are brought into contrast with their complementaries.

莫奈说过：“色彩的亮度，是源于对比的力度，而非其固有特质……原色在与其补色对比时，看起来最亮。”

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British primary schooling, in contrast, turns out thousands upon thousands without elementary reading or numerical skills, kids condemned to failure at an obscenely early age.

相比之下，英国的初级学校有许多甚至没有教授基本的阅读和数学技巧，以至于孩子们在很小的时候就注定了失败。

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The Likud's primary election, by contrast, will enable the entire rank-and-file to choose between Mr Netanyahu and the incumbent party leader, Ariel Sharon.

ECONOMIST: Can Bibi foil Barak��s bid to block him?

By contrast, primary generators operate upwards of 8, 000 hours every year.

FORBES: Backup Generators Are the Bad and Ugly of Decentralized Energy

The unflattering shots of a tired Hillary Rodham Clinton during the 2008 primary campaign stood in stark contrast to the youthful vigor of her opponent, Barack Obama.

FORBES: Michele Bachmann & History Lessons