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References
1. Experiences of prevention and harnessing of sand in Wuwei
2. Decisions on Harnessing of Shiyang River in Wuwei
http://www.gsdcri.com/
acknowledgements
We should give our thanks to the teachers and leaders in our school, as well as Town and Talent Co.,Ltd such as Peng Haina, Zhang Yinghua and He Xiaosong.
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