| Share | Phrase |
| 19.78% | atmosphere [location] diffuse |
| 10.18% | diffuse fuel [perform operation] |
| 5.47% | uniformly [similarity] diffuse |
| 5.35% | oxygen [does] diffuse |
| 5.23% | homogeneously [similarity] diffuse |
| 5.23% | molecule [does] diffuse |
| 4.89% | sufficiently [degree] diffuse |
| 4.21% | diffuse spray [perform operation] |
| 3.84% | layer [location] diffuse |
| 3.76% | diffuse gas [perform operation] |
| 3.36% | diffuse [temporal] remove |
| 3.08% | fuel [does] diffuse |
| 2.65% | gas [does] diffuse |
| 2.48% | mainly [degree] diffuse |
| 2.20% | flow [does] diffuse |
| 2.19% | form [manner] diffuse |
| 1.85% | air [does] diffuse |
| 1.85% | diffuse it [perform operation] |
| 1.76% | chamber [location] diffuse |
| 1.75% | diffuse to tend |
| 1.66% | diffuse in chamber |
| 1.63% | diffuse mixture [perform operation] |
| 1.58% | diffuse air [perform operation] |
| 1.08% | not diffuse |
| 1.07% | chamber diffuse |
| 0.89% | diffuse modal will |
| 0.85% | diffuse modal can |