Moreover, because the energy efficiency of a factory's production process is inextricably linked to the energy efficiency of its parts, businesspeople are well aware that they can only increase efficiency by getting new equipment. "But if you only get new machinery but don't maintain it, energy efficiency will get worse year after year."
此外，由於工廠的製程節能效率和其設備（蒸氣、空壓、機房設備等）的能源效率息息相關，業主都知道要更換設備才能提升效率，「但如果只換設備而不加以維護，能源效率還是會一年不如一年。」