| |||
| refraction method; method of wave refraction | |||
|
Refraktionsmethode : 3 phrases in 2 subjects |
| Medical appliances | 2 |
| Technology | 1 |
| |||
| refraction method; method of wave refraction | |||
|
Refraktionsmethode : 3 phrases in 2 subjects |
| Medical appliances | 2 |
| Technology | 1 |