排灌机械工程学报
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Journal of Drainage and Irrigation Machinery Engin  2013, Vol. 31 Issue (8): 708-712    DOI: 10.3969/j.issn.1674-8530.2013.08.011
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Structural design and performance research of seven-channel spherical check valve
Zhao Fei1, Fu Jie1, Song Wenwu1, Wang Chunzhi2
1.School of Energy and Environment, Xihua University, Chengdu, Sichuan 610039, China; 2.Chengdu Weisheng Seal Unit Assemblage Equipment Co.Ltd., Chengdu, Sichuan 610039, China

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