Disadvantages of engine coal mining

The disadvantage of engine coal mining is that it will make the machine much dirtier, and it is a waste of time to do it manually.

Engine, English name is engine. It was first born in Britain and is divided into internal combustion engine, external combustion engine, gas turbine and jet engine. The basic parameters are displacement and cylinder number, the basic structure is power conversion device, and the working principle is to convert internal energy into mechanical energy. It is a machine that can convert other forms of energy into mechanical energy, which originally meant "mechanical device that generates power". Troubleshooting includes excessive oil consumption and automatic flameout, and maintenance precautions include cleaning air filter, removing throttle sludge and cleaning fuel nozzle carbon deposit.