| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| numerical aperture and resolution | 1.76 | 0.6 | 5171 | 4 | 33 |
| numerical | 0.87 | 0.1 | 4298 | 25 | 9 |
| aperture | 0.81 | 1 | 4631 | 96 | 8 |
| and | 0.71 | 0.3 | 617 | 15 | 3 |
| resolution | 0.78 | 0.4 | 1514 | 1 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| numerical aperture and resolution | 1.4 | 1 | 473 | 90 |
