 |
| |||
| flame ignition; pilot-flame ignition; self-piloting ignition | |||
| torch ignition | |||
| pilot flame ignition | |||
| hot-bulb ignition | |||
| факельное зажигание: 7 phrases in 4 subjects |
| Astronautics | 3 |
| Firefighting and fire-control systems | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 2 |