| Similarity | Rank | |
|---|---|---|
| denitrification | 0.841 | 47547 |
| above-ground | 0.823 | 56220 |
| hydrogeological | 0.814 | 65224 |
| radionuclide | 0.812 | 25560 |
| leachate | 0.801 | 84487 |
| outgas | 0.800 | 50821 |
| subsurface | 0.800 | 27763 |
| biodegradation | 0.798 | 74761 |
| ozone-destroy | 0.797 | 88366 |
| intermediate-level | 0.796 | 62187 |
| gasification | 0.793 | 40725 |
| buckminsterfullerene | 0.792 | 57267 |
| single-crystal | 0.789 | 82677 |
| buckyball | 0.788 | 76203 |
| beryllium | 0.788 | 52345 |
| digester | 0.786 | 79949 |
| bioga | 0.783 | 50706 |
| ruthenium | 0.782 | 96719 |
| anthropogenic | 0.782 | 51620 |
| syn-gas | 0.780 | 49075 |
| gas-phase | 0.777 | 66348 |
| liquefaction | 0.777 | 74344 |
| mtbe | 0.776 | 87435 |
| supercritical | 0.776 | 66102 |
| polycyclic | 0.776 | 68633 |