urban economic base theory 城市经济基础理论
In Walata, a team of Spanish urban preservationists has just completed a UNESCO assignment to repair the town and stabilize its economic base.
在瓦拉塔，西班牙城区保护工作者的工作队刚刚完成联合国教科文组织所指派的修复旧城与稳定经济基础的任务。
Urban roads, as the base of providing beautiful environment and city functions, are the ties and arteries of the city's economic and social activities.
城市道路作为构成优美的居住环境和城市功能的基础，是城市社会活动与经济活动的纽带和动脉。
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