energy difference of frontier orbital
high energy rate forging
high energy rate metal forming
Parity-violating energy difference
potential energy difference
pressure difference energy
Standardization of rate and deposition of rate difference
sediment accumulation rate rate
Budget of kinetic energy and total potential energy
dissipation of energy and transformation of energy
ratio of hysteretic energy to input energy
saving energy and decreasing energy
saving energy and lowering energy consumption
Saving Energy and Reducing Energy Consumption
difference in difference
difference in difference (DD) method