| filter | |
| commun. el. | weighting network |
| construct. | well screen |
| el. | frequency filter; a.c.filter |
| environ. | dust arrester; dust filter; screen; strainer |
| fin. scient. | smoothing device |
| math. | filter |
|
interdigitale : 7 phrases in 3 subjects |
| Electronics | 1 |
| Mechanic engineering | 1 |
| Medical | 5 |