| Share | Phrase |
|---|
| 44.54% | self-ignite engine [perform operation] |
| 22.68% | compression [does] self-ignite |
| 7.66% | nozzle [does] self-ignite |
| 6.89% | fuel [does] self-ignite |
| 6.27% | self-ignite to fail |
| 4.91% | self-ignite gas [perform operation] |
| 4.25% | self-ignite fuel [perform operation] |
| 2.77% | not self-ignite |