This paper mainly analyzes the pneumatic structure and the principle of the step&scan stage, pointing out some concerned issues in pneumatic design&control.
着重分析了步进扫描工作台的气浮结构及原理，指出了气浮设计及控制中需要注意的一些问题。
AW series of large diameter valves using pneumatic actuator fork-type transmission, reasonable structure, output torque, a double-acting and single acting.
大口径阀门采用系列aw型气动执行器拔叉式传动，结构合理，输出扭矩大，有双作用式和单作用式。
It introduced axial pneumatic clutch structure, principle, function of de-airing extruder, and analysed its common fault in product.
介绍了真空挤出机气动离合器的结构、原理、功用，分析了气动离合器常见的故障。
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