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| в шахматном порядке (о способе установки крепи) | |||
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w trójkąt : 19 phrases in 6 subjects |
| Agriculture | 1 |
| Electrical engineering | 10 |
| Electronics | 1 |
| Metallurgy | 2 |
| Mine surveying | 1 |
| Mining | 4 |
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