| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| principle of echo sounder | 0.94 | 0.1 | 863 | 47 | 25 |
| principle | 0.07 | 0.4 | 2084 | 6 | 9 |
| of | 0.09 | 1 | 2174 | 19 | 2 |
| echo | 1.25 | 0.2 | 6095 | 95 | 4 |
| sounder | 1.41 | 0.2 | 8075 | 57 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| principle of echo sounder | 1.8 | 1 | 8615 | 86 |
