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| Kühlschirmrohr n | |||
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screen tube : 9 phrases in 8 subjects |
| Electronics | 1 |
| Industry | 1 |
| Measuring instruments | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Optics branch of physics | 1 |
| Physics | 1 |
| Technology | 2 |
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