| Similarity | Rank | |
|---|---|---|
| orimulsion | 0.812 | 39034 |
| ozone-damaging | 0.796 | 88642 |
| desalination | 0.787 | 43951 |
| landfill | 0.784 | 13169 |
| mox | 0.782 | 53327 |
| incinerator | 0.780 | 14919 |
| bioga | 0.769 | 50706 |
| rechem | 0.768 | 47089 |
| high-temperature | 0.768 | 42007 |
| ozone-depleting | 0.768 | 40272 |
| ozone-benign | 0.767 | 99646 |
| dioxin | 0.765 | 17452 |
| reprocessing | 0.764 | 73057 |
| intermediate-level | 0.763 | 62187 |
| gasification | 0.763 | 40725 |
| chlorofluorocarbon | 0.763 | 24061 |
| halon | 0.759 | 27495 |
| gas-fired | 0.756 | 29954 |
| non-hazardous | 0.756 | 89624 |
| polychlorinate | 0.755 | 45744 |
| feedstock | 0.754 | 29226 |
| low-sulphur | 0.752 | 51947 |
| toxic | 0.750 | 5194 |
| anti-pollution | 0.749 | 34159 |
| gas-cool | 0.749 | 61575 |