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脉 冲 峰 : 49 phrases in 13 subjects |
| Agriculture | 1 |
| Air defense | 5 |
| Automobiles | 1 |
| Aviation | 2 |
| Electric machinery | 1 |
| Electronics | 1 |
| General | 1 |
| Geophysics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 4 |
| Space | 6 |
| Technology | 23 |
| Ultrasound | 1 |
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