consumption amount of Primary Energy
high energy primary electron
primary energy consumption coefficient
primary energy resource
primary energy structure
Primary energy transformation matrix
Primary energy utilization rate
structure of the primary energy consumption
net primary production per gross primary production ratio
primary element and primary weight analysis
primary parametric resonance and primary resonance
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