In recent years,the global energy industry has been undergoing profound adjustment and transition,from traditional high-carbon unclean energy sources with low unit energy density to low-carbon clean energy sources with high unit energy density.Whether in natural resource endowment or its current development and utilization situations compared with those of other new energies,natural gas is in a very advantageous position.It can serve as the"bridge"in the process of the energy transition and play key roles in safeguarding the energy supply,improving the environment,enhancing resource security and so on.