Journal of Hebei University of Water Resources and Electric Engineering ›› 2020, Vol. 30 ›› Issue (1): 74-77.DOI: 10.16046/j.cnki.issn2096-5680.2020.01.014
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谢国旗1,闫 琼2,杨俊萍2,贺欢呼2,姜 畔2