| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ultra low frequency | 0.1 | 0.8 | 7943 | 73 | 19 |
| ultra | 1.27 | 1 | 79 | 80 | 5 |
| low | 1 | 0.7 | 2887 | 67 | 3 |
| frequency | 0.48 | 0.1 | 5324 | 98 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ultra low frequency | 0.93 | 0.1 | 6830 | 26 |
| ultra low frequency effects on humans | 0.47 | 0.8 | 4630 | 83 |
| ultra low frequency sound | 0.19 | 0.1 | 9632 | 74 |
| ultra low frequency radio | 0.78 | 0.1 | 1312 | 4 |
| ultra low frequency raman | 0.36 | 0.9 | 1191 | 26 |
| ultra low frequency sound weapons | 0.89 | 0.2 | 3248 | 36 |
| ultra low frequency communication | 0.01 | 0.2 | 1703 | 82 |
| ultra low frequency communication submarine | 0.11 | 0.2 | 5833 | 30 |
| ultra low frequency wave | 1.36 | 0.7 | 9233 | 60 |
| ultra low frequency range | 0.76 | 0.9 | 9477 | 47 |
| ultra low frequency sound effects on humans | 0.84 | 0.2 | 9821 | 97 |
| ultra low frequency antenna | 1.55 | 0.6 | 1062 | 31 |
| ultra low frequency speakers | 1.11 | 0.3 | 6664 | 98 |
| low frequency raman spectroscopy | 0.85 | 0.6 | 5546 | 90 |
| raman shift to frequency | 0.26 | 0.6 | 6746 | 92 |
| low cost raman spectrometer | 1.61 | 0.8 | 6881 | 47 |
| ultrafast infrared and raman spectroscopy | 1.57 | 0.1 | 5453 | 93 |
| what is raman spectrum | 0.34 | 0.6 | 9689 | 3 |
| wavelength raman shift raman | 1.24 | 0.6 | 3541 | 37 |
| raman soliton self frequency shift | 0.22 | 0.6 | 5721 | 83 |
