Pump and motor share a common shaft for short axial dimensions, making it working more smoothly and little noise.

泵与电机同轴，轴向尺寸短，使泵运行更加平稳，噪音低。

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Motorcycle disk brake is widely used because of its small radial dimensions, axial application of force along the disk when braking, no bending moment on brake shaft and braking stability.

摩托车液压盘式制动器径向尺寸较小，制动时沿制动盘的轴向施力，制动轴不受弯矩，制动性能稳定，应用较广。

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Then the physical process of current constriction and the influence of electrode dimensions on it are analysed. This analysis can be used to explain the effect of axial magnetic fields t…

并据此利用渐近分析方法分析了真空电弧中弧柱的磁收缩物理过程和电流密度分布，最后分析了电极参数对电弧收缩的影响。

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