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проходка горизонтальных горных выработок; подготовка по горизонтали |
level development: 39 phrases in 16 subjects |
Aviation | 1 |
Computers | 1 |
Design | 1 |
Diplomacy | 1 |
Economy | 3 |
Education | 1 |
Energy industry | 1 |
General | 2 |
Law | 2 |
Makarov | 1 |
Medical | 2 |
Name of organization | 9 |
Programming | 2 |
Psychology | 1 |
Technology | 1 |
United Nations | 10 |