| Byzantine beacon system(noun, expression, technology, entity, system) |
| Indian ocean tsunami warning system(noun, expression, technology, entity, system) |
| automatic warning system(noun, expression, technology, entity, system) |
| ballistic missile early warning system(noun, expression, technology, entity, system) |
| civilian warning system(noun, expression, technology, entity, system) |
| control of electromagnetic radiation(noun, expression, technology, entity, system) |
| emergency alert system(noun, expression, technology, entity, system) |
| emergency broadcast system(noun, expression, technology, entity, system) |
| ground proximity warning system(noun, expression, technology, entity, system) |
| international early warning programme(noun, expression, technology, entity, system) |
| lane departure warning system(noun, expression, technology, entity, system) |
| national emergency alarm repeater(noun, expression, technology, entity, system) |
| north warning system(noun, expression, technology, entity, system) |
| traffic collision avoidance system(noun, expression, technology, entity, system) |
| tsunami warning system(noun, expression, technology, entity, system) |
| Alberta emergency alert(noun, expression, technology, entity, system) |
| Alberta emergency public warning system(noun, expression, technology, entity, system) |
| Russian woodpecker(noun, expression, technology, entity, system) |
| Voronezh radar(noun, expression, technology, entity, system) |
| airborne early warning and control(noun, expression, technology, entity, system) |