对称负重合型气动伺服阀零位流动状态分析
訚耀保, 李长明
Neutral flow state analysis of pneumatic servovalves with symmetric underlaps
YIN Yaobao, LI Changming
航空学报 . 2015, (11): 3724 -3733 .  DOI: 10.7527/S1000-6893.2015.0032