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。
2
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.