January | 2021 | en.huanqiu
2021129. Huanqiu. The 15th International Conference on Green and Energy-efficient Building and New Technologies and Products Expo is held in Shenzhen, south China"s Guangdong province on April 3 and 4, 2019. (People"s Daily Online/Zhuang Wenbin) Cities are the most important constituent of green and low-carbon development. Ten ...
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