Major highway projects will further extend and reinforce the main road network.

大型公路工程将进一步扩大及巩固主要道路网。

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The classification and measuring procedure for geometrical objects of a city will be simplified if its main road network could be automatically extracted from aerial remote sensing images.

如果能自动地从航空遥感图像中提取出道路网，将会简化城市地物目标的分类和测量过程。

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Derbyshire County Council said keeping the main road network clear was a top priority.

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Everywhere I have stopped, people have told me that they took what they needed and guided the relief vehicles to villages that are furthest from the main road network.

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