排灌机械工程学报
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Journal of Drainage and Irrigation Machinery Engin  2000, Vol. 18 Issue (2): 32-34    DOI: 10.3969/j.issn.1674-8530.2000.02.015
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HOW TO FULLY USE THE O SEALING RING FUNCTION EFFECT
Zhao Lixin, Ding Xiaoling, Zhang Yemin, Zhang Jun
College of Engineering, SAU, Taian, 271018, China

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