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pro vyhledávání: '"Yu-pu Zhang"'
Publikováno v:
Optics and Precision Engineering. 29:117-129
Autor:
Yu Pu Zhang, Shao Jun Dai
Publikováno v:
Advanced Materials Research. :5859-5862
Heilongjiang is the base of coal resource in china, whose coal resource-based cities made great contributions in improving its economic. With the gradual reduction of coal resources, the transformation of coal resource-based cities is facing reality.