The structure forms and the construction craft of unbound graded aggregate base are analysed. It will be of some use in unbound graded base which are used for base of road.

深入分析了级配碎石基层的路面结构形式和施工工艺，对级配碎石广泛应用于路面基层具有一定的指导意义。

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Just up the road, at Edwards Air Force Base, is the runway where nearly half of all shuttle flights touched down.

就在爱德华兹空军基地的这条路上，有一条跑道，几乎一半的航天飞机都在这里降落。

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Meanwhile, just up the road, at Edwards Air Force Base, is the runway where nearly half of all shuttle flights touched down.

与此同时，就在爱德华兹空军基地的路上就是所有航天飞机将近有一半宇宙飞行降落的跑道。

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The Maze and Crumlin Road prisons, security bases at Ebrington and Magherafelt in County Londonderry and the Malone Road base in Belfast will be handed over free of charge to be redeveloped.

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Heading west from Dar es Salaam, the road traverses the Ruvu River, tracks along the base of the Uluguru Mountains and meanders through sisal plantations and a string of small villages.

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New cars are subject to a stiff tax ranging from 40% to 60% of the base price, a surcharge imposed by the local government to discourage road-system gridlock.

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