| Share | Phrase |
| 42.84% | reciprocal [similarity] movement |
| 21.73% | reciprocal [similarity] motion |
| 7.51% | reciprocal [similarity] piston |
| 3.43% | reciprocal [similarity] engine |
| 2.98% | reciprocal [similarity] member |
| 2.72% | reciprocal [similarity] ax |
| 2.04% | reciprocal [similarity] valve |
| 1.84% | reciprocal [similarity] axis |
| 1.68% | reciprocal [similarity] device |
| 1.49% | reciprocal [similarity] plunger |
| 1.17% | reciprocal [similarity] comprise |
| 1.15% | reciprocal [similarity] rod |
| 0.96% | reciprocal [similarity] direction |
| 0.92% | reciprocal within bore |
| 0.89% | piston [attribute] reciprocal |
| 0.73% | reciprocal [similarity] stroke |
| 0.72% | reciprocal [similarity] have |
| 0.66% | reciprocal [similarity] number |
| 0.65% | reciprocal subtract |
| 0.64% | reciprocal [similarity] action |
| 0.61% | reciprocal [similarity] position |
| 0.57% | reciprocal [similarity] include |
| 0.54% | reciprocal in cylinder |
| 0.52% | reciprocal [similarity] fashion |
| 0.50% | reciprocal [similarity] means |
| 0.37% | reciprocal within cylinder |