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| 光具盘; 频闪观测盘 | |||
| 光盘 | |||
| optical disk: 51 phrases in 13 subjects |
| Agriculture | 4 |
| Air defense | 1 |
| Chemistry | 1 |
| Computers | 3 |
| Data processing | 3 |
| Earth sciences | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Information technology | 7 |
| Multimedia | 6 |
| Space | 1 |
| Technology | 20 |
| Telecommunications | 2 |
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