液压支架双伸缩立柱用两种底阀的分析与研究

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龚智伟, 王丽丽

The Analysis and Research of Two Types of Bottom Valve Applied in Shield Double Telescopic Leg

GONG Zhi-wei, WANG Li-li

液压与气动 . 2014, (11): 120 -122 . DOI: 10.11832/j.issn.1000-4858.2014.11.029