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经过两年多的艰苦努力,一种新的路面结构—水泥沥青混凝土路面在湖北省宜昌地区公路总段研制成功,最近通过专家鉴定。
After more than two years of hard work, a new pavement structure - cement asphalt pavement in Yichang, Hubei Province Highway Section successfully developed, recently passed the expert assessment.