The urban highway tunnel is a component of urban underground space development .
城市公路隧道是城市开发地下空间的组成部分。
He is also involved in the development of the US Highway Capacity Manual.
他还参与了美国道路通行能手册的研究工作。
The company's main highway asphalt products for professional research and development, production and sales.
公司的主要公路的专业研究，开发，生产和销售沥青产品。
Companies located in Jixian Economic Development Zone, highway rail-connected and is very accessible.
公司坐落于蓟县经济开发区，公路铁路四通八达，交通十分便利。
Companies located in Jixian Economic Development Zone, highway rail-connected and is very accessible.
公司坐落于蓟县经济开发区，公路铁路四通八达，交通十分便利。
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