问答题简述货车溜放风阻力 car rolling resistance due to wind effect。
问答题简述货车溜放基本阻力 basic resistance for car rolling。
名词解释什么是溜车不利条件 unfavorable condition for car rolling; 溜车不利条件 unfavorable condition for car rolling名词解释定义是什么?
名词解释什么是溜车有利条件 favorable condition for car rolling; 溜车有利条件 favorable condition for car rolling名词解释定义是什么?
名词解释什么是迂回线 around about line of hump; 迂回线 around about line of hump名词解释定义是什么?