When acquiring the pavement image, the acquired image is hard for image segmentation and recognition because of the noise and the nonuniform background illumination.

在获取路面图像中，由于背景光照不均匀以及存在着一些路面噪声，给后来的图像分割及识别带来了一些困难。

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We need to make sure that millions of workers who are still pounding the pavement looking for jobs are not denied unemployment benefits to carry them through hard times.

我们还需要确保数百万还在艰难寻找工作的人获得失业救济，从而帮助他们渡过难关。

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The mechanical and application condition of pavement on long span steel bridge deck is so hard that the paving material is of high requirement.

大跨径钢桥桥面铺装层的使用条件和受力状态十分恶劣，对铺装层材料要求非常高。

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The musician, who is the first member of the rock band to receive the pavement plaque, will be honoured at a ceremony in front of the Hard Rock Cafe on Hollywood Boulevard on 10 July.

BBC: Slash to receive Hollywood Walk of Fame star