libration
| optique
| libration | |
| astr. | libration |
| optique | |
| chem. | optical |
| commun. transp. | optic |
| construct. | diffuser |
| econ. | optics |
| health. | optical optic; visual |
| |||
| libration | |||
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libration : 11 phrases in 3 subjects |
| Astronomy | 9 |
| Electronics | 1 |
| Natural sciences | 1 |