period control: 18 phrases in 14 subjects |
Accounting | 1 |
Astronautics | 1 |
Aviation | 2 |
Ecology | 1 |
Economy | 1 |
Energy industry | 2 |
Mechanics | 1 |
Nuclear and fusion power | 1 |
Physics | 1 |
Quality control and standards | 1 |
Robotics | 1 |
SAP | 1 |
SAP finance | 3 |
Technology | 1 |