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| discrete pulse; separated pulse | |||
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分离脉 冲 : 33 phrases in 12 subjects |
| Air defense | 7 |
| Automobiles | 1 |
| Construction | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Oil processing plants | 1 |
| Radio | 1 |
| Space | 3 |
| Technology | 13 |
| Telecommunications | 1 |
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