control lines: 30 phrases in 11 subjects |
Analytical chemistry | 1 |
Automated equipment | 5 |
Automobiles | 2 |
Communications | 2 |
Computers | 1 |
Electric traction | 1 |
Electronics | 5 |
Measuring instruments | 3 |
Microelectronics | 1 |
Technology | 8 |
Telecommunications | 1 |