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| Schloss mit Schluessel | |||
| Tastensperrung f | |||
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| Sicherheitsschlüssel und-Schloß | |||
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key locking : 45 phrases in 12 subjects |
| Chemistry | 2 |
| Communications | 1 |
| Computers | 1 |
| Construction | 7 |
| Economics | 2 |
| Figurative | 1 |
| General | 8 |
| Information technology | 10 |
| Microsoft | 1 |
| Military | 1 |
| Technology | 8 |
| Transport | 3 |