| Formel | |
| comp., MS | Ecuación; fórmula |
| econ. | forma |
| IT | fórmulas bien formadas |
|
Rayleigh : 25 phrases in 9 subjects |
| Chemistry | 3 |
| Communications | 3 |
| Earth sciences | 9 |
| Electronics | 3 |
| Mathematics | 1 |
| Measuring instruments | 1 |
| Physical sciences | 3 |
| Radio | 1 |
| Statistics | 1 |