| Similarity | Rank | |
|---|---|---|
| Emissions | 0.899 | 37744 |
| emission | 0.821 | 13146 |
| Gases | 0.726 | 90904 |
| Combustion | 0.723 | 74853 |
| Efficiency | 0.721 | 18898 |
| GHG | 0.720 | 30079 |
| Renewable | 0.720 | 19768 |
| Tomography | 0.717 | 93687 |
| NOx | 0.713 | 55787 |
| emissions | 0.705 | 4569 |
| Energy | 0.699 | 2769 |
| Dioxide | 0.696 | 69551 |
| Electron | 0.689 | 57814 |
| Pollution | 0.688 | 29306 |
| Reduction | 0.685 | 16961 |
| Metering | 0.678 | 85175 |
| Particle | 0.678 | 54068 |
| Detectors | 0.678 | 93824 |
| Detection | 0.675 | 28464 |
| Measurement | 0.675 | 27762 |
| Vehicle | 0.671 | 11910 |
| CO2 | 0.669 | 9992 |
| Microscopy | 0.667 | 87193 |
| GHGs | 0.665 | 91201 |
| Detector | 0.664 | 57528 |