holding" time : 44 phrases in 21 subjects |
Aluminium industry | 1 |
Applied mathematics | 2 |
Automated equipment | 1 |
Aviation | 1 |
Chemistry | 1 |
Communications | 1 |
Computers | 6 |
Energy industry | 1 |
General | 4 |
Investment | 1 |
Mass media | 4 |
Medical | 1 |
Medical appliances | 2 |
Metallurgy | 1 |
Pharmacy and pharmacology | 1 |
Quality control and standards | 1 |
Refrigeration | 1 |
Rhetoric | 1 |
Technology | 1 |
Telecommunications | 11 |
Telephony | 1 |