冷车启动先摇车□于丽萍在外界气温低的情况下机车不易启动，为此机手在启动机车前需先摇车。但有的机手嫌摇车麻烦，往往忽视这一环，其实这是不对的。有资料表明，发动机启动时所造成的磨损量约占整机使用磨损量的５０％～６０％，尤其在冬季机车停放时间较长的情况下，... Cold car starts first shake car □ Yu Liping locomotive is not easy to start in the case of low temperatures outside the world, for this reason the hands need to shake the car before starting the locomotive. However, some people are too busy with the troubles and usually neglect this ring. In fact, this is not correct. Data show that the engine starts when the wear and tear caused by about 50% ~ 60% of the wear and tear of the whole machine, especially in the winter locomotive parking a long time, ...