The flat in the supporting axle of the train wheel side frame is very difficult to process with ordinary milling lathe, and processing efficiency is very low.
火车车轮侧架支撑轮轴处的平面加工用普通铣床加工很困难，而且效率很低。
The inertial force and supporting reaction force created by the vibration of rotors with axle are regarded as external forces on the axle in this paper.
本文把随轴一起振动的转子惯性力及支承反力，看成是作用在轴上的外力。
Because of the complexities in geometric forms of the axle and the supporting Patterns, most of the calculations of the critical speed of turning axle are difficult.
由于轴的几何形状及支承方式的复杂性，转轴临界转速计算中的许多问题，是困难的问题。
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