| frequency | |
| gen. | frekwencja |
| agric. | gęstość |
| comp., MS | częstotliwość |
| math. | częstość |
|
spurious : 21 phrases in 9 subjects |
| Agriculture | 1 |
| Communications | 1 |
| Information technology | 1 |
| Magnetics | 3 |
| Mathematics | 1 |
| Nuclear physics | 2 |
| Piezoelectric crystals | 8 |
| Radio | 3 |
| Vacuum tubes | 1 |