| Share | Phrase |
| 5.78% | proportional [physical/chemical] valve |
| 3.47% | proportional [physical/chemical] generate |
| 3.00% | proportional [physical/chemical] term |
| 2.68% | inversely proportional |
| 2.65% | proportional [physical/chemical] have |
| 2.64% | proportional [physical/chemical] pressure |
| 2.27% | proportional [physical/chemical] control |
| 2.21% | proportional [physical/chemical] produce |
| 2.15% | directly proportional |
| 2.14% | proportional to speed |
| 1.68% | proportional [physical/chemical] signal |
| 1.62% | proportional [physical/chemical] pl |
| 1.62% | proportional to force |
| 1.58% | proportional [physical/chemical] pr |
| 1.35% | proportional [physical/chemical] amount |
| 1.19% | proportional [physical/chemical] voltage |
| 1.09% | proportional [physical/chemical] force |
| 1.08% | proportional to rate |
| 1.08% | proportional [physical/chemical] value |
| 1.07% | proportional to pressure |
| 1.05% | proportional [physical/chemical] rate |
| 1.03% | proportional [physical/chemical] provide |
| 0.99% | proportional [physical/chemical] gain |
| 0.80% | proportional [physical/chemical] frequency |
| 0.78% | proportional to square |
| 0.76% | proportional [physical/chemical] circuit |
| 0.74% | proportional [physical/chemical] relationship |
| 0.73% | proportional [physical/chemical] constant |
| 0.72% | proportional [physical/chemical] controller |
| 0.70% | proportional to current |
| 0.69% | proportional [physical/chemical] magnitude |
| 0.68% | proportional to concentration |
| 0.66% | proportional [physical/chemical] current |
| 0.65% | proportional to difference |
| 0.64% | proportional [physical/chemical] output |
| 0.62% | proportional [physical/chemical] output |
| 0.58% | substantially proportional |
| 0.54% | proportional to torque |
| 0.53% | proportional to velocity |
| 0.53% | proportional [physical/chemical] coefficient |
| 0.53% | signal [attribute] proportional |
| 0.51% | proportional [physical/chemical] means |
| 0.49% | proportional [physical/chemical] component |
| 0.46% | proportional [physical/chemical] factor |
| 0.46% | proportional to magnitude |
| 0.45% | pressure [attribute] proportional |
| 0.45% | proportional to amount |
| 0.42% | proportional to reciprocal |
| 0.41% | proportional [physical/chemical] quantity |
| 0.41% | proportional [physical/chemical] fuel |
| 0.41% | proportional to load |
| 0.40% | proportional [physical/chemical] speed |
| 0.39% | proportional [physical/chemical] time |
| 0.39% | proportional [physical/chemical] torque |
| 0.39% | proportional [physical/chemical] sensitivity |
| 0.38% | proportional [physical/chemical] amplitude |
| 0.37% | proportional to root |
| 0.37% | proportional [physical/chemical] width |
| 0.36% | proportional [physical/chemical] amplifier |
| 0.35% | amount [attribute] proportional |
| 0.35% | proportional to frequency |
| 0.34% | proportional [physical/chemical] maintain |
| 0.34% | proportional to quantity |
| 0.33% | proportional [physical/chemical] kp |
| 0.33% | linearly proportional |
| 0.32% | proportional to voltage |
| 0.32% | proportional [physical/chemical] level |
| 0.32% | proportional to signal |
| 0.32% | proportional to area |
| 0.32% | proportional to angle |
| 0.31% | proportional to volume |
| 0.30% | proportional [physical/chemical] duration |
| 0.30% | proportional [physical/chemical] deliver |
| 0.30% | proportional [physical/chemical] pi |
| 0.30% | proportional [physical/chemical] section |
| 0.29% | proportional to degree |
| 0.29% | proportional to duration |
| 0.28% | proportional [physical/chemical] lp |
| 0.28% | proportional [physical/chemical] part |
| 0.28% | proportional to value |
| 0.28% | proportional [physical/chemical] portion |
| 0.27% | proportional [physical/chemical] pj |
| 0.27% | proportional to displacement |
| 0.27% | proportional [physical/chemical] degree |
| 0.27% | proportional [physical/chemical] change |
| 0.26% | proportional [physical/chemical] make |
| 0.26% | proportional [physical/chemical] phos |
| 0.26% | proportional [physical/chemical] supply |
| 0.26% | proportional [physical/chemical] volume |
| 0.26% | proportional [physical/chemical] flow |
| 0.26% | proportional [physical/chemical] angle |
| 0.25% | frequency [attribute] proportional |
| 0.25% | current [attribute] proportional |
| 0.25% | force [attribute] proportional |
| 0.25% | voltage [attribute] proportional |
| 0.24% | proportional to product |
| 0.24% | proportional [physical/chemical] area |
| 0.24% | proportional to length |
| 0.24% | value [attribute] proportional |
| 0.23% | approximately proportional |
| 0.23% | proportional [physical/chemical] manner |
| 0.23% | proportional to deviation |
| 0.22% | proportional to ratio |
| 0.22% | proportional [physical/chemical] increase |
| 0.22% | proportional to temperature |
| 0.22% | proportional [physical/chemical] kpf |
| 0.21% | proportional [physical/chemical] system |
| 0.21% | proportional [physical/chemical] difference |
| 0.21% | proportional [physical/chemical] solenoid |
| 0.20% | proportional [physical/chemical] receive |
| 0.20% | proportional to air |
| 0.20% | proportional to rpm |
| 0.20% | proportional [physical/chemical] displacement |
| 0.20% | proportional [physical/chemical] operation |
| 0.20% | proportional [physical/chemical] element |
| 0.19% | proportional [physical/chemical] parameter |
| 0.19% | rate [attribute] proportional |
| 0.19% | proportional [physical/chemical] kcmd |
| 0.18% | proportional to effort |
| 0.18% | proportional to power |
| 0.18% | proportional [physical/chemical] intensity |
| 0.18% | proportional [physical/chemical] magnet |
| 0.18% | proportional [physical/chemical] characteristic |
| 0.18% | proportional [physical/chemical] relation |
| 0.17% | proportional [physical/chemical] function |
| 0.17% | proportional to flow |
| 0.17% | proportional to number |
| 0.17% | proportional to travel |
| 0.17% | proportional [physical/chemical] distance |
| 0.16% | proportional to distance |
| 0.16% | proportional [physical/chemical] number |
| 0.16% | proportional to intensity |
| 0.16% | proportional [physical/chemical] cause |
| 0.16% | proportional [physical/chemical] increase |
| 0.16% | proportional [physical/chemical] set |
| 0.16% | proportional [physical/chemical] spool |
| 0.15% | proportional to output |
| 0.15% | proportional [physical/chemical] drop |
| 0.15% | proportional [physical/chemical] period |
| 0.15% | proportional to time |
| 0.15% | proportional [physical/chemical] become |
| 0.15% | proportional of oxygen |
| 0.15% | proportional [physical/chemical] apply |
| 0.14% | quantity [attribute] proportional |
| 0.14% | proportional to weight |
| 0.14% | generally proportional |
| 0.14% | proportional to fuel |
| 0.14% | proportional [physical/chemical] sensor |
| 0.13% | proportional [physical/chemical] vp |
| 0.13% | proportional to mass |
| 0.13% | roughly proportional |