- energy band gap
- energy band of semiconducter
- energy band of semiconductor
- energy band structure
- energy-band structure
- [energy] band theory
- energy band theory
- energy barrier
- energy basic geological survey
- energy budget
- energy budget equation
- energy budget of aquaculture animals
- energy carrier
- energy cascade effect of turbulence
- Energy Charter Treaty
- energy chemistry
- energy circuit
- energy condition
- energy conditions
- energy confinement
- energy confinement time
- energy conservation
- energy conservation design standard for new heating residential buildings
- energy conservation engineering in rural areas
- energy conservation equation