公家车司机们要接受严格的培训，这其中还包括了他们要乘坐轮椅爬坡和上公交车。
Drivers underwent rigorous training that involved sitting in wheelchairs themselves and pushing their way up ramps and into buses.
首次将工作装置切削力作为附加力计算到履带的行走内阻力、爬坡阻力上。
It is the first time that the cutting force as an additional force which put into the calculation of interior resistance force of track group and the resistance force when climbing the slope;
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