| Share | Phrase |
| 6.76% | fuel introduction |
| 5.71% | air introduction |
| 4.98% | introduction chamber |
| 3.29% | introduction port |
| 2.91% | introduction pipe |
| 2.68% | permit introduction [perform operation] |
| 2.53% | mention in introduction |
| 2.28% | introduction system |
| 2.18% | mixture introduction |
| 2.10% | fluid introduction |
| 2.06% | gas introduction |
| 1.98% | facilitate introduction [perform operation] |
| 1.76% | control introduction [perform operation] |
| 1.66% | describe in introduction |
| 1.46% | mixture to introduction |
| 1.41% | periodic [time periodicity] introduction |
| 1.40% | introduction [temporal] introduce |
| 1.38% | allow introduction [perform operation] |
| 1.33% | introduction passage |
| 1.30% | fuel to introduction |
| 1.23% | introduction [connection] heat |
| 1.18% | water introduction |
| 1.18% | means to introduction |
| 1.18% | time introduction [perform operation] |
| 1.17% | pressure introduction |
| 1.13% | time after introduction |
| 1.13% | assembly upon introduction |
| 1.07% | prevent introduction [perform operation] |
| 1.05% | selective [typicality] introduction |
| 1.05% | introduction path |
| 1.05% | introduction [does] cause |
| 1.02% | introduction amount |
| 0.99% | interrupt introduction [perform operation] |
| 0.90% | medium introduction |
| 0.89% | stage introduction |
| 0.82% | introduction opening |
| 0.82% | continue introduction [perform operation] |
| 0.81% | stop introduction [perform operation] |
| 0.79% | introduction passageway |
| 0.78% | material [domain related] introduction |
| 0.78% | introduction hole |
| 0.78% | introduction means |
| 0.74% | delay introduction [perform operation] |
| 0.72% | charge introduction |
| 0.72% | introduction way |
| 0.69% | vacuum introduction |
| 0.67% | enable introduction [perform operation] |
| 0.66% | terminate introduction [perform operation] |
| 0.64% | specification introduction |
| 0.63% | air to introduction |
| 0.62% | force introduction |
| 0.61% | block introduction [perform operation] |
| 0.60% | stream introduction |
| 0.55% | lead to introduction |
| 0.55% | promote introduction [perform operation] |
| 0.55% | oil introduction |
| 0.54% | introduction [does] displace |
| 0.52% | introduction determination |
| 0.51% | effect introduction [perform operation] |
| 0.51% | uniform [similarity] introduction |
| 0.48% | fresh [chronology] introduction |
| 0.48% | pilot introduction |
| 0.47% | involve introduction [perform operation] |
| 0.46% | introduction timing |
| 0.46% | vapor introduction |
| 0.45% | dynamic [motion] introduction |
| 0.44% | oxygen introduction |
| 0.44% | introduction [purpose] provide |
| 0.43% | tool introduction |
| 0.43% | means for introduction |
| 0.42% | main [importance] introduction |
| 0.40% | inhibit introduction [perform operation] |
| 0.38% | introduction [does] take |
| 0.38% | pulse introduction |
| 0.37% | introduction rate |
| 0.36% | achieve introduction [perform operation] |
| 0.36% | introduction point |
| 0.35% | datum introduction |
| 0.34% | introduction circuit |
| 0.34% | introduction [does] create |
| 0.34% | avoid introduction [perform operation] |
| 0.34% | introduction [does] provide |
| 0.34% | quantity introduction |
| 0.34% | introduction device |
| 0.33% | proper [accuracy] introduction |
| 0.33% | carry out introduction [perform operation] |
| 0.32% | introduction relate |
| 0.31% | accomplish introduction [perform operation] |
| 0.31% | introduction [does] prevent |
| 0.30% | flow introduction |
| 0.29% | system introduction |
| 0.28% | amount introduction |
| 0.26% | control introduction |
| 0.25% | introduction [does] allow |
| 0.25% | fluid [state] introduction |
| 0.24% | reduce introduction [perform operation] |
| 0.23% | introduction valve |
| 0.23% | introduction [does] make |
| 0.23% | introduction [does] produce |
| 0.21% | device introduction |
| 0.20% | require introduction [perform operation] |
| 0.19% | provide introduction [perform operation] |
| 0.19% | introduction assembly |
| 0.19% | comprise introduction [perform operation] |
| 0.18% | introduction portion |
| 0.16% | cause introduction [perform operation] |
| 0.15% | make introduction [perform operation] |
| 0.13% | include introduction [perform operation] |
| 0.09% | not introduction |