将车辆停放在平坦和水平路面上，然后起动发动机以预热机油。
Park automobile on the flat and level road, and then start engine to preheat engine oil.
在汽车发动机起动时，若发动机起动后起动机不能及时断电，将会烧毁起动机或损坏飞轮齿环；
When the automotive engine is started, the engine start motor and flywheel gear may be damaged, even traffic accidents and personal safeties may be caused by wrong operation or other factors.
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