订份报纸很合算定陶县拖拉机驾驶员吴喜，多年来一直坚持自费订阅多种农机技术报刊，从中学得了不少的技术知识，有次在运货时拖拉机出现＂晃头＂现象，他根据学到的知识，很快就诊断为前轮轴承外圈破裂、滚桂脱出的缘故，很快就排除了故障。不仅节约了维修费用，而且还节... Dinghai County tractor driver Wu Xi, has for many years been insisting on subscription to a variety of agricultural technology newspapers at their own expense, from a lot of technical knowledge gained, there are times when the tractor “Huang Tou” phenomenon, he According to the learned knowledge, soon diagnosed as the front wheel bearing outer ring rupture, rolling Gui prolapse sake, quickly ruled out the fault. Not only save maintenance costs, but also section ...