Environmental Impact Statements
Emissions Inventory System
Electrochemical Impedance Spectroscopy
Environmental Information System
Environmental Inventory System
effluent inventory system
Electron Impact Spectroscopy
Employee Information System
environmental impact study
Effluent information system
eikonal initial state
eisern
electrochem. impedance spectroscopy
electrolyte-insulator-semiconductor
Emergency Information Systems
Employee Inventory System
End Items
Energetic Ion Spectrometer
Environment Information System
Experimental information system
expert information system