| Share | Phrase |
|---|
| 20.99% | pulse combustors |
| 10.77% | turbine combustors |
| 6.82% | fluidized [state] combustors |
| 4.95% | valveless combustors |
| 4.85% | bed combustors |
| 4.17% | plurality combustors |
| 3.65% | type [amount] combustors |
| 3.47% | gas combustors |
| 3.14% | combustors [does] operate |
| 2.97% | pulsating [motion] combustors |
| 2.93% | toroidal [shape] combustors |
| 2.92% | jet [color] combustors |
| 2.75% | prior [chronology] combustors |
| 2.69% | art combustors |
| 2.54% | conventional [typicality] combustors |
| 2.43% | fuel to combustors |
| 2.33% | annular [shape] combustors |
| 2.29% | type combustors |
| 2.15% | small [size] combustors |
| 1.74% | affect combustors [perform operation] |
| 1.57% | current [chronology] combustors |
| 1.42% | combustors [does] have |
| 1.40% | design combustors [perform operation] |
| 1.29% | disclose combustors [perform operation] |
| 1.12% | operate combustors [perform operation] |
| 0.93% | use combustors [perform operation] |
| 0.90% | invention combustors |
| 0.69% | engine combustors |