What does EELS stand for?

Early Entry Lethality and Survivability - Military

Elecricity Emitter Location System (SAUS)

electron energy loss spectral (SAUS)

Electron Energy Loss Spectroscopy - Also, ELS

Electron Energy Loss Spectrum (SAUS)

Electronic and Editing Layout System - Telecommunications (DGA)

Electronic Emitter Location System (MCD)

Electronic Emitter Locator System (SAUS)

Engineering Electronic Library, Sweden (SAUS)