According to valve's control mode, it is divided into servo actuator and switch actuator.
根据阀门的控制方式，可分为伺服型执行机构和开关型执行机构。
A proximity switch is mounted to the main gear, detecting an actuator on one spindle.
一个接近开关被装到主要的齿轮，发现在一件纱锭上的一个主动器。
A novel micromachining torsion beam optical switch micro- actuator driven by electrostatic force was designed and simulated by means of Finite Element Method (FEM).
报导了一种新型静电驱动扭转梁大位移微机械光开关微动作器的模拟、设计和制作。
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