Actuation is often desired for process automation, precision timing, and remoteoperation not possible with manual valves alone.
执行机构经常用于实现紧靠手动阀门无法实现的工艺过程的自动化，准确定时，以及远程操作。
2
This system uses the head movement controlled camera pan and tilt to replace pan and tilt's manualoperation, and so enhance the efficiency of the remote control operation.