- EHV
- EHV AC transmission system
- EI
- EIA
- EIB
- EIBF
- EIC
- EICA
- EICAS
- Eichler
- Eichler approximation theorem
- eiconal
- eicosanoic acid
- eicosanoid based signaling
- eicosanoid-based signaling
- eicosanol
- eicosapentaenoic acid
- eicosapentaenoic acid (EPA)
- eID
- EIDE interface
- eidetic image
- eidetic reduction
- EIDE接口
- eidograph
- EIFAAC