排灌机械工程学报
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Journal of Drainage and Irrigation Machinery Engin  2017, Vol. 35 Issue (3): 216-221    DOI: 10.3969/j.issn.1674-8530.16.0012
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Worldwide technical analysis on multistage centrifugal pump based on patent map
LU Zhanxiong1, LIU Qiong2, WANG Kai1, CHEN Kun3
1. National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Library, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 3.Ningbo Jushen Pumps Industry Co. Ltd., Ningbo, Zhejiang 315135, China

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