英语翻译【论文摘要】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

The present paper presents a new type of electric actuators, the design of the detailed introduction of each functor and design, selection of the valve position and speed control principle and all key the solution to the problem. The valve actuator, servo motor, controllers are one, with 8031 single-chip microcomputer, the frequency conversion technology to achieve the valve movement speed and position control, solve the accurate location of the valve, the valve flexible switch, limit position of judgment, the motor protection and analog signal isolating technology problems. Site operation shows that the electric actuators have to be fast, protection perfect and easy and computer communication, etc.
再问： 机电一体化；电动执行机构；阀位；单片机；三相PWM波发生器还有这些关键词怎么翻译，谢谢