 |
| |||
| machine calculator | |||
| 机动计算器: 18 phrases in 7 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Earth sciences | 4 |
| Electronics | 3 |
| General | 6 |
| Space | 2 |
| Technology | 1 |
|
| |||
| machine calculator | |||
| 机动计算器: 18 phrases in 7 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Earth sciences | 4 |
| Electronics | 3 |
| General | 6 |
| Space | 2 |
| Technology | 1 |