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| analog pulse | |||
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模 拟脉冲 : 26 phrases in 8 subjects |
| Air defense | 2 |
| Automobiles | 2 |
| Aviation | 1 |
| Earth sciences | 2 |
| Electronics | 8 |
| Geophysics | 3 |
| Space | 3 |
| Technology | 5 |
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