direct control: 23 phrases in 13 subjects |
Artificial intelligence | 1 |
Automated equipment | 3 |
Automobiles | 1 |
Business | 1 |
Communications | 1 |
Computers | 2 |
Earth sciences | 1 |
Electronics | 4 |
General | 4 |
Life sciences | 1 |
Measuring instruments | 2 |
Natural sciences | 1 |
Telecommunications | 1 |