| Similarity | Rank | |
|---|---|---|
| boiler | 0.782 | 13188 |
| boilers | 0.759 | 25056 |
| steams | 0.756 | 95752 |
| combustion | 0.709 | 15295 |
| condensing | 0.707 | 47427 |
| furnaces | 0.702 | 30904 |
| scrubber | 0.701 | 73224 |
| Steam | 0.698 | 15612 |
| scrubbers | 0.696 | 91481 |
| steaming | 0.694 | 20406 |
| firebox | 0.693 | 69140 |
| heating | 0.692 | 4216 |
| evaporator | 0.686 | 54470 |
| steamers | 0.684 | 55592 |
| cooling | 0.682 | 5940 |
| heat | 0.681 | 1440 |
| dryer | 0.676 | 11826 |
| flue | 0.671 | 38443 |
| furnace | 0.671 | 12662 |
| dryers | 0.667 | 30173 |
| heater | 0.666 | 10118 |
| heaters | 0.665 | 15430 |
| locomotive | 0.665 | 20523 |
| gas-fired | 0.665 | 70372 |
| radiators | 0.661 | 37705 |