轮周功率
- 网络output power at wheel rim
轮周功率-
低气压和低气温均构成对机车轮周功率（内燃牵引时）和列车阻力的影响。
Low atmospheric pressure and temperature of surrounding air are both effected to locomotive output power at wheel rim and train resistance with diesel traction .
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基于相关参数和修正系数的分析和选择，文章阐明了高原铁路所需机车轮周功率和列车比功率与列车最高速度、保有加速度及列车质量之间的关系。
Based on analysis and selection of the relative parameters and modified coefficients , the paper describes the relations of the locomotive output power at wheel rim and train power / mass ratio with maximum speed of train , holding acceleration and train mass for plateau railway .