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| 横向波 | |||
| 横向波浪; 横浪; 横波; 束状波 | |||
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beam wave : 22 phrases in 6 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Electronics | 3 |
| Radio | 2 |
| Space | 3 |
| Technology | 11 |
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