| Share | Phrase |
| 9.41% | flow restriction |
| 4.23% | restriction to flow |
| 4.02% | restriction orifice |
| 3.66% | restriction gap |
| 2.97% | throttle restriction |
| 2.81% | restriction means |
| 2.18% | restriction valve |
| 2.16% | impose restriction [perform operation] |
| 1.86% | provide restriction [perform operation] |
| 1.85% | variable [time periodicity] restriction |
| 1.70% | annular [shape] restriction |
| 1.57% | restriction member |
| 1.53% | torch restriction |
| 1.23% | restriction passage |
| 1.01% | effective for restriction |
| 0.92% | restriction [is] orifice |
| 0.89% | greatest [amount] restriction |
| 0.89% | serve for restriction |
| 0.88% | restriction degree |
| 0.87% | have restriction [perform operation] |
| 0.83% | form restriction [perform operation] |
| 0.83% | not restriction |
| 0.81% | restriction against frequency |
| 0.80% | fluid [state] restriction |
| 0.79% | meet restriction [perform operation] |
| 0.78% | include restriction [perform operation] |
| 0.75% | calibrated restriction |
| 0.75% | greater restriction |
| 0.71% | restriction surge |
| 0.69% | restriction characteristic |
| 0.69% | layout restriction |
| 0.69% | smaller restriction |
| 0.67% | nozzle restriction |
| 0.66% | restriction plate |
| 0.66% | present restriction [perform operation] |
| 0.66% | restriction [does] cause |
| 0.64% | vary restriction [perform operation] |
| 0.63% | manipulated restriction |
| 0.63% | free from restriction |
| 0.63% | venturi restriction |
| 0.62% | fuel restriction |
| 0.60% | restriction [does] limit |
| 0.58% | create restriction [perform operation] |
| 0.58% | substantial [importance] restriction |
| 0.58% | variable [time periodicity] restriction |
| 0.58% | restriction downstream |
| 0.56% | restriction [does] create |
| 0.56% | fixed [time periodicity] restriction |
| 0.55% | throttling restriction |
| 0.53% | subject to restriction |
| 0.52% | restriction stopper |
| 0.51% | restriction system |
| 0.49% | restriction device |
| 0.49% | effective [effectiveness] restriction |
| 0.48% | space restriction |
| 0.47% | restriction in passage |
| 0.47% | area restriction |
| 0.46% | place restriction [perform operation] |
| 0.46% | severe [difficulty] restriction |
| 0.45% | minimum [size] restriction |
| 0.44% | emission restriction |
| 0.44% | metering restriction |
| 0.43% | offer restriction [perform operation] |
| 0.43% | connect through restriction |
| 0.41% | cause restriction [perform operation] |
| 0.41% | restriction [does] minimize |
| 0.41% | size restriction [perform operation] |
| 0.41% | amount restriction |
| 0.40% | comprise restriction [perform operation] |
| 0.40% | dispose restriction [perform operation] |
| 0.40% | exhaust [physical/chemical] restriction |
| 0.40% | minimal [size] restriction |
| 0.40% | restriction element |
| 0.39% | restriction area |
| 0.39% | charge restriction |
| 0.39% | feed restriction |
| 0.39% | restriction flow |
| 0.38% | fluid restriction |
| 0.38% | reduce restriction [perform operation] |
| 0.37% | restriction in flow |
| 0.37% | restriction [does] control |
| 0.37% | restriction [does] flow |
| 0.36% | restriction [does] reduce |
| 0.36% | restriction clearance |
| 0.35% | inherent [typicality] restriction |
| 0.34% | bleed restriction |
| 0.34% | resulting [effectiveness] restriction |
| 0.33% | minimize restriction [perform operation] |
| 0.33% | establish restriction [perform operation] |
| 0.33% | significant [importance] restriction |
| 0.32% | valve restriction |
| 0.32% | restriction in path |
| 0.32% | define restriction [perform operation] |
| 0.32% | overcome restriction [perform operation] |
| 0.32% | air restriction |
| 0.31% | design restriction [perform operation] |
| 0.31% | generate restriction [perform operation] |
| 0.30% | restriction size |
| 0.30% | additional [importance] restriction |
| 0.29% | restriction ADVP preferably |
| 0.28% | increasing [increase] restriction |
| 0.28% | restriction [does] prevent |
| 0.28% | restriction [using as instrument] provide |
| 0.27% | orifice restriction |
| 0.27% | decrease restriction [perform operation] |
| 0.27% | increase restriction [perform operation] |
| 0.27% | restriction pin |
| 0.26% | restriction [does] increase |
| 0.26% | design restriction |
| 0.26% | locate restriction [perform operation] |
| 0.26% | intake restriction |
| 0.25% | substantially restriction |
| 0.25% | constitute restriction [perform operation] |
| 0.25% | restriction [does] exist |
| 0.25% | restriction effect |
| 0.24% | filter restriction |
| 0.24% | avoid restriction [perform operation] |
| 0.24% | restriction [does] have |
| 0.23% | restriction [connection] subject |
| 0.23% | restriction loss |
| 0.23% | circuit restriction |
| 0.23% | restriction [does] generate |
| 0.22% | appropriate [effectiveness] restriction |
| 0.22% | restriction [does] develop |
| 0.22% | restriction mechanism |
| 0.22% | level [shape] restriction |
| 0.21% | restriction [does] connect |
| 0.21% | line restriction |
| 0.21% | restriction path |
| 0.20% | restriction pass |
| 0.20% | passage restriction |
| 0.19% | restriction structure |
| 0.19% | pump restriction |
| 0.19% | restriction communicate |
| 0.19% | movement restriction |
| 0.18% | restriction result |
| 0.18% | restriction [does] allow |
| 0.18% | use restriction [perform operation] |
| 0.18% | point restriction |
| 0.18% | introduce restriction [perform operation] |
| 0.18% | eliminate restriction [perform operation] |
| 0.17% | effect restriction [perform operation] |
| 0.17% | control restriction [perform operation] |
| 0.17% | restriction [does] provide |
| 0.16% | contain restriction [perform operation] |
| 0.16% | maximum [size] restriction |
| 0.16% | restriction [does] decrease |
| 0.16% | restriction [does] supply |
| 0.16% | equal [similarity] restriction |
| 0.16% | perform restriction [perform operation] |
| 0.15% | various [similarity] restriction |