What are the two methods of locomotive starting?

[Eliana]

The two methods of locomotive starting are as follows: 1. Starting with constant power; 2. Starting with constant acceleration. Precautions for car starting are as follows: 1. Observe the surrounding environment: Carefully inspect the condition around the vehicle, paying attention to whether there are obstacles under the car and around the body. 2. Cold cars need preheating: Cold starts require preheating the engine, with the preheating time depending on the temperature, generally until the idle speed returns to normal before starting. 3. Fasten seat belts: Always remember to fasten seat belts and check if the position of the driver's seat and rearview mirrors is appropriate, adjusting if necessary.