| Similarity | Rank | |
|---|---|---|
| low-frequency | 0.869 | 74676 |
| oscillators | 0.773 | 70759 |
| transducers | 0.770 | 65061 |
| piezoelectric | 0.754 | 76776 |
| frequency | 0.744 | 4108 |
| oscillator | 0.739 | 40232 |
| ultrasonic | 0.737 | 34927 |
| waveguide | 0.729 | 84527 |
| high-power | 0.727 | 65048 |
| signals | 0.724 | 5015 |
| waveforms | 0.718 | 63317 |
| impedance | 0.715 | 29367 |
| modulation | 0.713 | 29621 |
| frequencies | 0.711 | 11433 |
| oscillations | 0.710 | 50190 |
| transducer | 0.709 | 41656 |
| signal-to-noise | 0.703 | 85997 |
| oscillation | 0.702 | 49885 |
| tunable | 0.702 | 91118 |
| electromagnetic | 0.701 | 16569 |
| electro-magnetic | 0.700 | 90843 |
| piezo | 0.698 | 99288 |
| waveform | 0.697 | 40421 |
| amplitude | 0.695 | 26024 |
| directional | 0.695 | 23821 |