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| ★ 目视光学系统; 视景系统 | |||
| 目视系统 | |||
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Visual Systems : 105 phrases in 14 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 33 |
| Earth sciences | 4 |
| Economics | 1 |
| Electronics | 31 |
| General | 1 |
| Information technology | 2 |
| Management | 1 |
| Mechanics | 1 |
| Space | 15 |
| Technology | 8 |
| Telecommunications | 3 |
| Textile industry | 3 |