排灌机械工程学报
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Journal of Drainage and Irrigation Machinery Engin  2006, Vol. 24 Issue (4): 25-28    DOI: 10.3969/j.issn.1674-8530.2006.04.007
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Liquid-air switch valve and its application in automatic agricultural sprinkler system
LI Shu-xun, BA Qiao-huan, HE Lian-juan, DU Zhao-nian
Lanzhou University of Technology, Lanzhou, Gansu 730050, China

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