| Similarity | Rank | |
|---|---|---|
| radio-telescope | 0.841 | 91134 |
| earth-based | 0.837 | 76197 |
| spectrograph | 0.835 | 83424 |
| 15-cm | 0.832 | 92495 |
| nebulæ | 0.830 | 66546 |
| sub-millimetre | 0.827 | 92466 |
| co-rotation | 0.820 | 78092 |
| iras | 0.819 | 33102 |
| iue | 0.818 | 78584 |
| hde | 0.816 | 91615 |
| photometry | 0.813 | 93235 |
| shadowgraph | 0.813 | 98072 |
| exosphere | 0.810 | 87795 |
| diffract | 0.809 | 71243 |
| spectrally | 0.808 | 98801 |
| red-shift | 0.805 | 91019 |
| cosmic-ray | 0.805 | 75220 |
| refraction | 0.802 | 34785 |
| gamma-ray | 0.802 | 42486 |
| psr1706-44 | 0.801 | 59335 |
| leonov | 0.800 | 98276 |
| wind-tunnel | 0.797 | 66550 |
| tof | 0.797 | 80349 |
| imager | 0.797 | 67698 |
| antineutron | 0.797 | 92177 |