| Similarity | Rank | |
|---|---|---|
| Gases | 0.800 | 90904 |
| combustion | 0.776 | 15295 |
| Turbine | 0.754 | 48433 |
| Gas | 0.734 | 8205 |
| Biomass | 0.733 | 50798 |
| Emissions | 0.728 | 37744 |
| Boiler | 0.726 | 48453 |
| Emission | 0.723 | 56179 |
| Turbines | 0.721 | 90319 |
| Exhaust | 0.716 | 54071 |
| Propane | 0.716 | 57643 |
| Refrigeration | 0.714 | 64732 |
| Reactor | 0.709 | 56571 |
| Generators | 0.701 | 56832 |
| Hydrogen | 0.696 | 29099 |
| gasification | 0.695 | 64900 |
| Geothermal | 0.694 | 51004 |
| Particle | 0.694 | 54068 |
| Efficiency | 0.692 | 18898 |
| Ventilation | 0.689 | 55452 |
| Methane | 0.687 | 69623 |
| Hydraulic | 0.687 | 46631 |
| NOx | 0.682 | 55787 |
| Welding | 0.681 | 39805 |
| Compressed | 0.680 | 71058 |