| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| internal exchange of gas | 0.07 | 0.1 | 4576 | 57 | 24 |
| internal | 0.13 | 0.2 | 7338 | 13 | 8 |
| exchange | 1.39 | 0.1 | 8458 | 63 | 8 |
| of | 0.55 | 0.1 | 7380 | 18 | 2 |
| gas | 1.07 | 0.9 | 2527 | 65 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| internal exchange of gas | 0.39 | 0.8 | 2255 | 43 |
