介绍在汽车修理中对前轮定位的要求，阐述前轮定位的检测、诊断方法及故障的排除。
This article deals briefly with the requirements of front wheel alignment and its detection, diagnostic method and the writers experience in trouble removal in car repairs is also described.
采用一种全新的控制方法，将交流弧焊器所提供的特种电源转换成汽车修理所需的可控直流电源，是一种具有实用价值的尝试。
It's a very practical attempt adopting wholly new control method change the special power afforded by the A. C. arc welder to the controlled D. C. power required in automobile maintenance.
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