| Share | Phrase |
|---|
| 31.03% | amplifying [increase] device |
| 18.90% | amplifying [increase] circuit |
| 11.75% | amplifying [increase] transistor |
| 8.04% | amplifying [increase] arm |
| 7.27% | amplifying [increase] ratio |
| 5.41% | amplifying [increase] element |
| 4.42% | amplifying [increase] system |
| 3.75% | amplifying [increase] unit |
| 3.52% | amplifying [increase] means |
| 2.95% | amplifying [increase] effect |
| 2.51% | amplifying [increase] valve |
| 0.38% | pressure amplifying |