The main structure of JM-203 nailing machine is stated briefly, the pneumatical system is stressed and the technology improvement is analyzed during the trial-manufacture.
简述了JM- 203钉角机的主要结构，重点介绍了其气动系统，并分析试制过程中的技术改进情况。
Methods of increasing damping radio are introduced for fluid power system, and the pneumatical proportional servo system with variable damping ratio is put forward.
介绍了流体动力系统常用的提高阻尼比的方法，提出了可调液压阻尼器的变阻尼气压比例伺服系统。
Methods of increasing damping radio are introduced for fluid power system, and the pneumatical proportional servo system with variable damping ratio is put forward.
介绍了流体动力系统常用的提高阻尼比的方法，提出了可调液压阻尼器的变阻尼气压比例伺服系统。
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