1. Isothermal compression: a compression method in which the temperature is always constant when the gas is compressed.
2. Adiabatic compression: A compression method in an adiabatic state that neither heats nor removes heat from the outside.
3. Multilateral curve compression (actually used compression method): it is a compression method that dissipates part of the generated heat, has heat exchange with the outside, and is different from isothermal compression and adiabatic compression
