The following article takes the former as its topic to explore the economic convergence effect and outward radiationfunction of Chenddu metropolitan circle.
前一个标志正是本文研究的主题，旨在探讨成都都市圈的经济集聚效应及其对外辐射的外向型功能。
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Normal public transfer hub is an important component of efficient, safe and comfortable modern traffic system, and also a basic facility with radiationfunction.
The utility model has the advantages of better drapability with the anti - ultraviolet radiationfunction which is suitable for the rider to prevent the radiation of the summer burning sun.