Visually and manually inspect all fixed gear before using it, including bolts and anchors, and especially those at stations and cruxes where the carabiners see maximum wear.

攀爬之前要观察并判断所有已经固定在路线上面的装备是否状态良好，包括膨胀钉和挂片，尤其是保护站和难点上，这些地方上的钩环使用频率最高，磨损也最为严重。

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The use case model allows testers to visually identify their test cases, especially when the process includes a use case diagram.

用例模式允许测试人员从视觉上识别他们地测试用例，尤其是当这个过程包括一个用例图时。

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This is not acceptable for users with disabilities, especially for visually impaired users.

这对于残障人士是无法接受的，尤其是视力受损用户。

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Mr West said that the lack of raised pavements and kerbs created problems, especially for the visually impaired who rely on a dog or a white stick.

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"Safety is our highest priority, and this proposal will help keep everyone using our nation's streets and roadways safe, whether they are motorists, bicyclists or pedestrians, and especially the blind and visually impaired, " said U.S. Transportation Secretary Ray LaHood.

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