four-digit
| seven-segment display
| four digit abbr. | |
| gen. | vierstellig |
| seven-segment display abbr. | |
| microel. | Siebensegmentanzeige; 7-Segment-Anzeige |
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| vierstellig | |||
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| vierstellig | |||
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four-digit : 4 phrases in 4 subjects |
| Communications | 1 |
| Foreign trade | 1 |
| Microelectronics | 1 |
| Optics branch of physics | 1 |