| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| three types of membranes | 1.51 | 1 | 9123 | 70 | 24 |
| three | 0.44 | 1 | 3851 | 80 | 5 |
| types | 1.54 | 0.1 | 2243 | 87 | 5 |
| of | 0.61 | 0.9 | 7917 | 32 | 2 |
| membranes | 0.34 | 0.5 | 8434 | 19 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| three types of membranes | 1.28 | 0.4 | 7601 | 87 |
