| Share | Phrase |
|---|
| 27.60% | occluding [does] occlude |
| 19.28% | occlude nox [perform operation] |
| 12.46% | occlude in catalyst |
| 11.22% | catalyst [does] occlude |
| 7.58% | hydride [does] occlude |
| 6.03% | occlude oxide [perform operation] |
| 4.84% | occlude aperture [perform operation] |
| 3.60% | ratio [temporal] occlude |
| 3.23% | occlude bore [perform operation] |
| 2.66% | occlude port [perform operation] |
| 1.45% | ratio occlude |