| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| refrigeration principle and working | 0.87 | 1 | 3595 | 13 | 35 |
| refrigeration | 1.42 | 0.6 | 1276 | 76 | 13 |
| principle | 0.78 | 0.7 | 4523 | 69 | 9 |
| and | 1.36 | 0.6 | 7875 | 91 | 3 |
| working | 0.58 | 1 | 6256 | 81 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| refrigeration principle and working | 0.55 | 0.7 | 8232 | 96 |
