| Share | Phrase |
| 22.33% | pressure equalization |
| 4.92% | equalization port |
| 4.78% | equalization between reservoir |
| 4.56% | equalization pressure |
| 3.96% | substantial [importance] equalization |
| 3.93% | effect equalization [perform operation] |
| 3.92% | equalization tube |
| 3.59% | equalization [does] take |
| 3.57% | equalization valve |
| 3.44% | equalization between cylinder |
| 3.40% | equalization system |
| 3.24% | initiate equalization [perform operation] |
| 3.02% | equalization piston |
| 2.76% | equalization bore |
| 2.69% | achieve equalization [perform operation] |
| 2.66% | equalization [does] occur |
| 2.55% | allow equalization [perform operation] |
| 2.37% | need for equalization |
| 2.26% | equalization line |
| 2.04% | force equalization |
| 2.03% | provide equalization [perform operation] |
| 1.85% | enable equalization [perform operation] |
| 1.65% | equalization chamber |
| 1.63% | equalization opening |
| 1.63% | load equalization |
| 1.61% | equalization means |
| 1.37% | equalization passage |
| 1.18% | permit equalization [perform operation] |
| 0.91% | system equalization |