| Similarity | Rank | |
|---|---|---|
| desulphurization | 0.902 | 76072 |
| fgd | 0.864 | 30166 |
| low-sulphur | 0.835 | 51947 |
| oil-fired | 0.827 | 49906 |
| energy-saving | 0.817 | 50504 |
| coal-fired | 0.817 | 21020 |
| multi-point | 0.810 | 64459 |
| refrigerant | 0.803 | 52632 |
| retrofit | 0.802 | 47557 |
| ozone-benign | 0.800 | 99646 |
| gasification | 0.800 | 40725 |
| gas-fired | 0.799 | 29954 |
| 134a | 0.798 | 62803 |
| gas-cool | 0.794 | 61575 |
| chlorination | 0.794 | 96351 |
| solar-powered | 0.794 | 68989 |
| reprocessing | 0.792 | 73057 |
| draught-proofing | 0.789 | 68446 |
| circulator | 0.786 | 77095 |
| outage | 0.783 | 61311 |
| lpg | 0.783 | 44069 |
| energy-save | 0.783 | 61963 |
| subsea | 0.782 | 48336 |
| coolant | 0.779 | 33789 |
| lean-burn | 0.779 | 82318 |