compressorless air-breathing jet engine

air-breathing jet engine

ram air-breathing jet engine

airbreathing jet engine / ducted jet engine

air breathing engine

reaction engine / motor (jet engine)

engine breathing ability

air-feed jet engine

laser air-jet engine

engine capacity / engine power, engine output

terrain-hugging air-breathing low-flying vehicles

fresh-air hose breathing apparatus

air breathing defense

air breathing missile

air breathing target

axial-flow (jet) engine

hydrojet / water jet engine

jet engine

jet propulsion engine

arc jet engine

jet-propulsion engine

breathing control

scuba (Self-Contained Underwater Breathing Apparatus)

self-contained breathing apparatus (SCBA)

hose breathing apparatus

hose breathing device

CABCDE (Critical Bleeding, Airway, Breathing, Circulation, Disability, Exposure)

breathing system

oxygen-breathing apparatus

autonomous breathing apparatus

breathing oxygen

breathing-oxygen system

self-contained open-circuit breathing apparatus