Is It Normal for a Three-Year-Old Car to Rust?

[JuliaRose]

It is not normal for a three-year-old car to rust. Energy Conversion: An engine is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, an internal combustion engine typically converts chemical energy into mechanical energy. Device: An engine can refer to both a power generation device and the entire machine that includes the power device (e.g., gasoline engines, aircraft engines). The engine was first developed in the UK, so the concept of an engine also originates from English, with its original meaning referring to a "mechanical device that generates power."