driving radius meaning in English

工作半径

On the basis of 3d modeling and virtual prototyping technology and energy saving transformation method for parameterized simulation moving beam typed oil suction pump , and using the eccentric gear reducer to replace the ordinary gear reducer to let the driving radius of eccentric gear be kept a variation of similar tendency with the load of crank in order to improve load property of the motor , thus raised the working efficiency of the entire oil suction pump and achieved the effect of energy saving
摘要基于三维建模和虚拟样机技术，参数化仿真游梁式抽油机节能改造方法，用偏心齿轮减速器代替普通齿轮减速器，使偏心齿轮驱动半径和曲柄负载保持同趋势变化，以改善电机负载特性，提高整个抽油机的工作效率，达到了节能的效果。