By the use of video technology to achieve a collision avoidance warning to the bridge pier.

提出一种利用视频技术实现对桥墩防撞预警的方法。

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Some are accident-avoidance devices that use wi-fi signals to let drivers know where other cars are and to see around corners to give drivers a warning about an impending collision.

其中包括一些能够自动避免事故的设备，这些设备通过使用wi-fi无线网络信号，让驾驶员知道附近其他车辆的位置，还可以侦测到转弯处有无来车，以提醒驾驶员进行避让，避免车祸。

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The navigation system's traffic avoidance feature works well, and we like the new lane departure warning system.

该导航系统的交通避税功能运作良好，而我们喜欢新的车道偏离警告系统。

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Mr Clegg outlined how he hoped to reform tax by closing avoidance loopholes and had a warning for banks that "no options were off the table" if they paid high bonuses.

BBC: Clegg: Cuts timing 'a technical judgement'