error circle meaning in English

误差圆

The critical error has been found through computation , which is the error circling the gear . the load sharing characteristics of two kind of star - type gearing train has been determined through comparison . based on computation , the load sharing capability of two - stage external gear train is better than that of two - stage internal and external gear train
其次，从静力学的角度分析了各误差对系统均载性能的影响，比较了各误差对系统均载性能影响的大小，得到了较大的影响系统均载的误差因素，即圆周方向分布的误差；比较了两种星型齿轮系统的均载性能，根据计算结果，两级外啮合传动系统的均载性能要好于两级内外啮合传动系统。