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| wrench square (на насосных штангах/бурильном инструменте; источник: словарь Извекова); wrench square (на насосных штангах/бурильном инструменте; источник: словарь Извекова) | |||
| квадрат под ключ: 4 phrases in 3 subjects |
| Drilling | 1 |
| Mining | 1 |
| Transport | 2 |
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