sunspot
| theory
| sunspot abbr. | |
| nat.sc. | tache solaire |
| theory abbr. | |
| arts. | théorie |
| earth.sc. el. | calcul |
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| tache solaire | |||
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sunspot : 59 phrases in 6 subjects |
| Astronomy | 16 |
| Communications | 2 |
| General | 1 |
| Life sciences | 22 |
| Natural sciences | 16 |
| Radio | 2 |