| Share | Phrase |
|---|
| 15.89% | changing [time periodicity] rate |
| 9.31% | changing [time periodicity] speed |
| 8.79% | changing [time periodicity] means |
| 8.65% | changing [time periodicity] controller |
| 5.90% | changing [time periodicity] direction |
| 5.18% | changing [time periodicity] trend |
| 4.57% | changing [time periodicity] degree |
| 4.53% | changing [time periodicity] flux |
| 3.29% | periodical [time periodicity] changing |
| 2.93% | changing [time periodicity] field |
| 2.79% | changing [time periodicity] pressure |
| 2.78% | changing [time periodicity] amount |
| 2.56% | changing [time periodicity] operating |
| 2.38% | changing [time periodicity] state |
| 2.11% | changing [time periodicity] range |
| 2.03% | changing [time periodicity] apparatus |
| 1.96% | changing [time periodicity] distance |
| 1.95% | changing [time periodicity] condition |
| 1.85% | changing [time periodicity] temperature |
| 1.70% | changing [time periodicity] ratio |
| 1.67% | changing [time periodicity] characteristic |
| 1.65% | changing [time periodicity] operation |
| 1.64% | changing [time periodicity] voltage |
| 1.41% | changing [time periodicity] signal |
| 0.79% | ratio changing |
| 0.61% | changing period |
| 0.51% | oil changing |
| 0.43% | pressure changing |