| Share | Phrase |
|---|
| 22.82% | i' [numeric] half-waves |
| 17.97% | alternating [time periodicity] half-waves |
| 17.76% | voltage half-waves |
| 11.09% | positive [certainty] half-waves |
| 9.26% | induced [physical/chemical] half-waves |
| 9.03% | admit half-waves [perform operation] |
| 4.65% | negative [effectiveness] half-waves |
| 3.83% | half-waves series |
| 3.56% | subsequent [chronology] half-waves |