| refractometer | |
| auto. | medidor observador a través de la luz |
| chem. | refractómetro |
|
Rayleigh : 35 phrases in 10 subjects |
| Antennas and waveguides | 3 |
| Chemistry | 3 |
| Communications | 5 |
| Earth sciences | 10 |
| Electronics | 5 |
| Magnetics | 2 |
| Mathematics | 2 |
| Physical sciences | 3 |
| Physics | 1 |
| Radio | 1 |