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| centre section; nose bridge glasses | |||
| center portion | |||
| middle | |||
| front | |||
| central part; middle section; lower shell | |||
| middle part | |||
| intermediate part | |||
| Mittelteil: 19 phrases in 6 subjects |
| Communications | 1 |
| Industry | 2 |
| Mechanic engineering | 8 |
| Medical | 6 |
| Mining | 1 |
| Technology | 1 |