机译:Energetic efficiency and the first law: the California net energy system revisited
A3 Cattle Co, Legrand, CA 95333 USA;
Univ Calif Davis, Sch Vet Med, Davis, CA 95616 USA;
Scibus, Fac Vet Sci, Camden, NSW 2570, AustraliaUniv Calif Davis, Dept Anim Sci, Davis, CA 95616 USA;