求翻译：提出一种新型电动执行机构的设计方案，详细介绍了该执行机构各功能元件的选型与设计、阀位及速度控制原理以及各种关键问题的解决方法。该执行机构将阀门、伺服电机、控制器合为一体，采用8031单片机、变频技术实现了阀门的动作速度和位置控制，解决了阀门的精确定位、阀门柔性开关、极限位置判断、电机保护及模拟信号隔离等技术问题。现场运行情况表明，该电动执行机构具有动作快、保护完善以及便于和计算机通讯等优点。是什么意思？

Propose a new design scheme of electric actuator, detailing the implementation of agency selection and design of the functional components, valve position and speed control and a variety of solutions to key problems. The actuator valves, servo motor, controller and integration, 8,031 monolithic integrated circuit, frequency conversion technology enables the valve motion velocity and position control, solved the precise position of the valve, valves, flexible judgment, motor protection switch, extreme position and analog signal isolation technology issues. Field operation shows that the actuator has a fast and perfect protection and ease of communication and computer advantages.