| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| principle of electron microscope | 0.12 | 0.4 | 8882 | 93 | 32 |
| principle | 1.4 | 1 | 6434 | 66 | 9 |
| of | 0.82 | 0.7 | 8434 | 14 | 2 |
| electron | 0.22 | 0.7 | 4676 | 40 | 8 |
| microscope | 0.09 | 0.5 | 7792 | 5 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| principle of electron microscope | 1.61 | 0.8 | 4492 | 3 |
