| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| the friction and lubrication of solids pdf | 1.72 | 0.7 | 8491 | 10 | 42 |
| the | 0.02 | 0.1 | 2227 | 100 | 3 |
| friction | 1.33 | 0.2 | 3385 | 39 | 8 |
| and | 1.45 | 0.9 | 9905 | 77 | 3 |
| lubrication | 0.54 | 0.2 | 5212 | 76 | 11 |
| of | 1.51 | 0.9 | 954 | 20 | 2 |
| solids | 1.13 | 0.3 | 7476 | 27 | 6 |
| 0.49 | 0.9 | 1307 | 79 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the friction and lubrication of solids pdf | 1.76 | 0.9 | 243 | 84 |
