In order to overcome the stortage, the paper has introduced a new design method which is easy for road making machinery designer to use.

本文推荐的优化设计方法使用简便，可直接供筑路机械设计人员参考使用。

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The Greek historian Herodotus told of its use in the form of pitch for building and road making in the ancient city of Babylon in present-day Iraq.

希腊历史学家希罗·多德曾说过，在古巴比伦，也就是现在的伊拉克，石油就以沥青的形式出现，被用于建筑和铺路。

youdao

The Greek historian Herodotus told of its use in the form of pitch for building and road making in the ancient city of Babylon in present-day Iraq.

希腊历史学家希罗·多德提到过在巴比伦古城，即现在的伊拉克，石油就以沥青的形式被用于修建房屋和马路。

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They set up checkpoints along a road making it safe from bandits.

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And he occasionally took the show on the road, making appearances at Tennessee's Bonnaroo, the Newport Folk Festival and Los Angeles' Greek Theater.

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Once you invent something, the road to making money from it is paved with a particularly tricky stone you have to be worried about: patents.

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