 |
| |||
| columbic acio (HNbO3; H3NbO4; H4Nb2O7); niobic acid (HNbO3； H3NbO4; H4Nb2O7) | |||
| niobic acid | |||
| 铌酸: 92 phrases in 10 subjects |
| Aviation | 3 |
| Chemistry | 18 |
| Earth sciences | 5 |
| Electronics | 9 |
| General | 5 |
| Metallurgy | 20 |
| Piezoelectric crystals | 3 |
| Space | 2 |
| Technology | 26 |
| Telecommunications | 1 |