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| 频谱分析器; 波分析器 | |||
| 波形分析仪 | |||
| 谐波分析器 | |||
| 波动分析器 | |||
| 波形分析器 | |||
| 波浪分析器 | |||
| 电磁波分析仪 | |||
| wave analyzer: 18 phrases in 5 subjects |
| Air defense | 1 |
| Earth sciences | 4 |
| Electronics | 1 |
| Geophysics | 1 |
| Technology | 11 |
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