Research Progress of Pilot Structures in Pilot Control Valves
QIAN Jin-yuan, YAO Huai-yu, WU Jia-yi, JIN Zhi-jiang
CHINESE HYDRAULICS & PNEUMATICS . 2021, (3): 14 -24 .  DOI: 10.11832/j.issn.1000-4858.2021.03.003