trigonal
| system
| trigonal | |
| med. | dreiseitig |
| system | |
| gen. | Methode; System; Anlage |
| refrig. | System |
| tech. | Anlage; Anordnung; Bauart; Netz; Netzverbund; Bezugssystem datum |
| |||
| dreiseitig | |||
| dreieckig; trigonal | |||
|
trigonal : 25 phrases in 6 subjects |
| Chemistry | 1 |
| General | 3 |
| Metallurgy | 1 |
| Mineralogy | 1 |
| Physics | 17 |
| Technology | 2 |