 |
| |||
| tambour du Fresnel (бочонок Френеля) | |||
| verre cylindrique (Koshka na okoshke) | |||
| lentille cylindrique | |||
| цилиндрическая линза: 5 phrases in 2 subjects |
| Medical appliances | 3 |
| Photography | 2 |
|
| |||
| tambour du Fresnel (бочонок Френеля) | |||
| verre cylindrique (Koshka na okoshke) | |||
| lentille cylindrique | |||
| цилиндрическая линза: 5 phrases in 2 subjects |
| Medical appliances | 3 |
| Photography | 2 |