| Share | Phrase |
| 36.37% | working [functioning] chamber |
| 8.03% | working [functioning] fluid |
| 6.41% | working [functioning] space |
| 4.98% | working [functioning] oil |
| 4.23% | working [functioning] pressure |
| 3.89% | working [functioning] piston |
| 2.06% | working [functioning] surface |
| 1.72% | working [functioning] passageway |
| 1.66% | working [functioning] gas |
| 1.42% | working [functioning] passage |
| 1.40% | working [functioning] means |
| 1.28% | working [functioning] source |
| 1.15% | working [functioning] face |
| 1.14% | working [functioning] vehicle |
| 1.14% | working [functioning] condition |
| 1.08% | working [functioning] compartment |
| 1.08% | working [functioning] stroke |
| 1.02% | working [functioning] area |
| 1.02% | working [functioning] system |
| 0.93% | working [functioning] position |
| 0.91% | working [functioning] cylinder |
| 0.90% | working [functioning] press |
| 0.83% | working [functioning] medium |
| 0.79% | working [functioning] unit |
| 0.75% | working [functioning] line |
| 0.74% | working [functioning] path |
| 0.70% | working [functioning] property |
| 0.68% | working [functioning] tool |
| 0.67% | working [functioning] liquid |
| 0.66% | working [functioning] engine |
| 0.64% | working [functioning] clearance |
| 0.62% | working [functioning] sphere |
| 0.61% | working [functioning] value |
| 0.57% | working [functioning] side |
| 0.57% | working [functioning] reservoir |
| 0.57% | working [functioning] rate |
| 0.55% | working [functioning] cycle |
| 0.51% | working [functioning] time |
| 0.51% | working [functioning] status |
| 0.49% | working [functioning] efficiency |
| 0.47% | working [functioning] assembly |
| 0.47% | working under condition |
| 0.47% | working [functioning] volume |
| 0.41% | working [functioning] end |
| 0.38% | working [functioning] connection |
| 0.36% | working [functioning] part |
| 0.36% | working [functioning] inlet |
| 0.34% | working [functioning] state |
| 0.33% | working [functioning] temperature |
| 0.32% | working [functioning] portion |
| 0.30% | working in mode |
| 0.24% | working [functioning] member |