| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| engineering rock mass classification | 0.29 | 0.1 | 9405 | 66 | 36 |
| engineering | 0.73 | 1 | 4750 | 36 | 11 |
| rock | 1.9 | 0.4 | 3191 | 79 | 4 |
| mass | 0.36 | 0.3 | 3152 | 87 | 4 |
| classification | 0.65 | 0.2 | 4126 | 16 | 14 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| engineering rock mass classification | 0.99 | 0.5 | 4934 | 13 |
