| Similarity | Rank | |
|---|---|---|
| ozone-benign | 0.834 | 99646 |
| feedstock | 0.834 | 29226 |
| bioga | 0.829 | 50706 |
| low-sulphur | 0.823 | 51947 |
| biofuel | 0.820 | 57289 |
| gas-cool | 0.817 | 61575 |
| woodpulp | 0.817 | 89560 |
| steel-making | 0.816 | 53715 |
| hydrocarbon | 0.815 | 12320 |
| ruthenium | 0.804 | 96719 |
| fossil-fuel | 0.803 | 76055 |
| desulphurisation | 0.800 | 48583 |
| hcfc | 0.798 | 89263 |
| denitrification | 0.797 | 47547 |
| high-temperature | 0.793 | 42007 |
| mtbe | 0.790 | 87435 |
| fast-breeder | 0.789 | 53738 |
| cellulosic | 0.785 | 93328 |
| ozone-depleting | 0.783 | 40272 |
| reprocessing | 0.782 | 73057 |
| ozone-destroy | 0.782 | 88366 |
| pressurised-water | 0.780 | 61444 |
| fluorocarbon | 0.779 | 92192 |
| biotechnological | 0.778 | 61095 |
| above-ground | 0.777 | 56220 |