dynamic frequency
| spectrum analyser
| dynamic frequency | |
| chem. | 动态频率 |
| spectrum analyser | |
| plast. | 光谱分析仪 |
| space | 频谱 分析仪 |
| |||
| 动态频率 | |||
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dynamic frequency : 12 phrases in 8 subjects |
| Electricity | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Plastics | 1 |
| Polymers | 1 |
| Technology | 3 |
| Telecommunications | 3 |