Low atmospheric pressure and temperature of surrounding air are both effected to locomotive output power at wheel rim and trainresistance with diesel traction.
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。
2
The precondition of the acceleration testing method is the determination of the trainresistance, rotary mass coefficient and train mass. The crucial test is measurement of train acceleration.
加速度测试法的先决条件是确定列车基本阻力、回转质量系数和列车质量，而其测试关键是列车加速度的测定。
3
Exceptional thermal stability and oxidation resistance prevents in-service oil degradation which contributes to filter blocking and sludge formation in the oil galleries, crankcase and valve train.