| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| hvac and refrigeration textbook | 0.33 | 0.9 | 3592 | 63 | 31 |
| hvac | 0.04 | 0.5 | 3786 | 22 | 4 |
| and | 1.34 | 0.6 | 7069 | 11 | 3 |
| refrigeration | 0.45 | 0.6 | 1728 | 79 | 13 |
| textbook | 0.37 | 0.2 | 493 | 16 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| hvac and refrigeration textbook | 1.28 | 0.8 | 4663 | 30 |
