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介绍了该试验系统的工作原理，该系统不但可完成防爆液压提升机速度的电液比例控制试验研究，其功能经进一步拓展、合理配置，可进行多种液压元件与系统的研究与开发试验。
The working principle of the test system is introduced. The system can not only complete the electro-hydraulic proportional control test of explosion-proof hydraulic hoist speed, but also extend the functions of the hydraulic hoist and rationally configure the system to carry out research and development tests of various hydraulic components and systems.