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| фальцевое соединение, закрепляемое лунками | |||
| замок с кнопочным набором кода; кнопочный замок | |||
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button lock : 24 phrases in 13 subjects |
| Astronautics | 1 |
| Construction | 4 |
| Electrical engineering | 3 |
| Electricity | 1 |
| General | 3 |
| Information security and data protection | 1 |
| Mechanics | 1 |
| Microsoft | 1 |
| Mining | 1 |
| Security systems | 2 |
| Technology | 4 |
| Tools | 1 |
| Transport | 1 |