| Similarity | Rank | |
|---|---|---|
| Filtration | 0.839 | 63090 |
| aeration | 0.837 | 43387 |
| disinfection | 0.812 | 42785 |
| filters | 0.799 | 7124 |
| chlorination | 0.799 | 98665 |
| recirculation | 0.796 | 82564 |
| filter | 0.789 | 4030 |
| aerators | 0.781 | 94175 |
| self-cleaning | 0.775 | 75256 |
| purifiers | 0.771 | 49159 |
| effluent | 0.767 | 38366 |
| HEPA | 0.765 | 42708 |
| dewatering | 0.762 | 87432 |
| contaminants | 0.760 | 17549 |
| purifier | 0.752 | 36881 |
| ionizer | 0.749 | 91312 |
| Osmosis | 0.745 | 88040 |
| aerator | 0.743 | 72909 |
| chlorine | 0.741 | 17545 |
| osmosis | 0.741 | 39200 |
| turbidity | 0.740 | 71435 |
| wastewater | 0.739 | 17337 |
| filtering | 0.728 | 12232 |
| evaporator | 0.727 | 54470 |
| sump | 0.726 | 30252 |