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number of apertures |
число отверстий : 26 phrases in 19 subjects |
Cement | 1 |
Drilling | 1 |
Electrochemistry | 1 |
Electronics | 2 |
Energy industry | 2 |
General | 1 |
Makarov | 1 |
Mass media | 1 |
Mechanics | 1 |
Microelectronics | 1 |
Mining | 4 |
Oil / petroleum | 1 |
Oil and gas | 1 |
Optics branch of physics | 1 |
Rail transport | 1 |
Road works | 2 |
Robotics | 1 |
Sakhalin | 2 |
Technology | 1 |