| Share | Phrase |
|---|
| 20.44% | absorbent [physical/chemical] body |
| 13.07% | absorbent [physical/chemical] material |
| 11.88% | absorbent [physical/chemical] catalyst |
| 8.50% | absorbent [physical/chemical] nox |
| 7.73% | nox [attribute] absorbent |
| 7.57% | absorbent [physical/chemical] chamber |
| 5.11% | absorbent [physical/chemical] particle |
| 4.19% | absorbent from lean |
| 4.12% | absorbent after engine |
| 4.12% | absorbent [physical/chemical] lean |
| 3.09% | absorbent [physical/chemical] absorbing |
| 3.09% | absorbent [physical/chemical] contain |
| 2.30% | absorbent [location] absorb |
| 1.92% | absorbent [physical/chemical] means |
| 1.46% | release absorbent [perform operation] |
| 1.32% | absorbent at ratio |