| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| environmental engineering research期刊 | 0.6 | 1 | 24 | 4 | 40 |
| environmental | 0.53 | 0.2 | 3188 | 65 | 13 |
| engineering | 0.58 | 0.4 | 1918 | 23 | 11 |
| research期刊 | 0.82 | 0.7 | 6016 | 37 | 14 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| environmental engineering research期刊 | 0.6 | 0.5 | 3089 | 11 |
