environment control system noise

contemporary operational environment / contemporary operating environment (COE)

system of system common operating environment

noise floor; noise level

environment protection system

flight environment data system

clutter environment target discrimination system

balanced program of noise control

noise control

noise control technique

noise suppression system

augmented lift system noise

noise exposure forecast system

electrical noise of the measurement system

noise annoyance rating system

noise monitoring system

air defense ground environment

Allied Joint Doctrine for Recovery of Personnel in a Hostile Environment (AJP-3.7)

battlefield environment

chemical environment

common operating environment (COE)

contaminated environment

ECM environment

Environment and Security Initiative (ENVSEC) UN-OSCE-NATO initiative

favorable environment

field environment

Future Airborne Capability Environment (FACE)

hostile environment

information environment

land environment

launch environment

launching environment

low-threat environment