| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| principles of electron optics pdf free | 1.39 | 0.2 | 4530 | 76 | 38 |
| principles | 1.14 | 0.4 | 9107 | 6 | 10 |
| of | 0.11 | 0.8 | 5756 | 4 | 2 |
| electron | 0.07 | 0.3 | 8480 | 17 | 8 |
| optics | 0.17 | 0.8 | 9800 | 96 | 6 |
| 1.05 | 1 | 2895 | 96 | 3 | |
| free | 0.93 | 1 | 8337 | 43 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| principles of electron optics pdf free | 0.45 | 1 | 9517 | 42 |
