为建立快速高效的高速公路意外事件自动检测系统，提高意外事件救援效率，就高速公路意外事件检测中的关键技术进行了研究。
The key technology of freeway accident detection was studied in order to set up a quick and efficient accident detection system and promote the efficiency of accident rescue.
昨日上午，沈阳绕城高速公路改扩建和沈阳四环快速路工程开工仪式在绕城高速公路石桥子收费站举行，在2013年全运会召开之前，两条环路将全部竣工通车。
Shenyang kicked off yesterday morning at a toll station on the third ring road. Before the National Games in 2013, the two ring roads will be completed.
美国有成千上万英里的免费高速公路。快速干道和收费高速公路。因为车速限制在每小时55英里，所以快速行车是不可能的，除非驾车者准备冒支付一大笔罚金的风险。
There are thousands of miles of freeways, expressways and turnpikes, yet rapid journeys are not possible unless the driver is prepared to risk a heavy fine, for there is a speed limit of 55 MPH.
美国有成千上万英里的免费高速公路。快速干道和收费高速公路。因为车速限制在每小时55英里，所以快速行车是不可能的，除非驾车者准备冒支付一大笔罚金的风险。
There are thousands of miles of freeways, expressways and turnpikes, yet rapid journeys are not possible unless the driver is prepared to risk a heavy fine, for there is a speed limit of 55 MPH.
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