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| 扫描电子束 | |||
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scanning electron beam : 16 phrases in 8 subjects |
| Air defense | 1 |
| Earth sciences | 1 |
| Electronics | 9 |
| General | 1 |
| Geology | 1 |
| Shipbuilding | 1 |
| Telecommunications | 1 |
| Thermal Energy | 1 |
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