OPERA | |
abbr. earth.sc. | oil pollution environmental risk assessment |
abbr. mil. avia. | operational analysis |
abbr. progr. IT | Open Process Engine For Reliable Activities |
tech. | operational analysis |
tech. abbr. | out-of-pile expulsion and reentry apparatus |
opera | |
abbr. | o |
E | |
abbr. | East |
O&G | electrochemical potential |