Low atmospheric pressure and temperature of surrounding air are both effected to locomotive output power at wheel rim and train resistance 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。
The precondition of the acceleration testing method is the determination of the train resistance, 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。
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.
优异的热稳定性和抗氧化性防止在职石油降解这有助于阻止和污泥过滤器在石油画廊，曲轴箱和阀门列车编组。
The results show that the series high temperature creep resistance die casting magnesium alloy has potential to make power-train parts with decrease of the weight greatly.
试验结果表明，所开发的抗蠕变压铸镁合金具有应用于汽车动力系统部件的制造并大幅度减轻重量的潜力。
Rail must provide continuous, smooth, least resistance of rolling surfaces and good adhesion of traction to the train wheels.
钢轨必须为车轮提供连续、平顺和阻力最小的滚动表面，还应提供较好的粘着牵引力。
Rail must provide continuous, smooth, least resistance of rolling surfaces and good adhesion of traction to the train wheels.
钢轨必须为车轮提供连续、平顺和阻力最小的滚动表面，还应提供较好的粘着牵引力。
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