In urban light rail, elevated roads, traffic roads, highways, concrete mixing field from the field, such as the role of the sound barrier absorption of new, acoustic, muffler role of environmental materials.
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urban elevated roads 城市高架路
We must restore these channels by building elevated roads or tunnels.
我们必须通过建立高架公路或者隧道来恢复这些迁移通道。
After the transforming, the drainage ability of elevated roads of the Inner Ring Line has been ra...
通过改造提高了内环高架路的排水能力。
After the transforming, the drainage ability of elevated roads of the Inner Ring Line has been raised.
通过改造提高了内环高架路的排水能力。
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