Air or gas cylinder actuators include single or double acting, fail open or closed by mechanical spring or pneumatic force. They can be manufactured to accommodate any length stroke.
空气或燃气缸体执行机构包括单动或双动，由机械弹簧或气动力实现故障开启或关闭等各种类型。
The mathematical model of a pneumatic force control system with an asymmetric servovalve and a single-acting cylinder were described.
分析了非对称气动伺服阀控单作用气缸的气动压力控制系统的数学模型。
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