A paving material of tar and broken stone; mixed in a factory and shaped during paving.

柏油和碎石制成的铺路材料；在制造厂和铺路期间混合。

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The pervious asphalt concrete is the paving material more advanced internationally, and just used locally.

透水沥青混凝土是国际上较为先进的筑路材料，国内刚开始采用。

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Because the region around New Orleans is composed of alluvial soil, there is no paving material close at hand.

因为临近的都没有可用于铺路的材料，新奥尔良周围的地区都是由淤积土组成的。

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For instance, at George Tech they're trying to turn garbage into lava rock so it can be used for everything from paving roads to construction material for buildings.

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