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| electronic surveillance monitoring | |||
| electronic monitoring | |||
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电 子监控 : 25 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 16 |
| Electronics | 1 |
| Mechanics | 1 |
| Oil / petroleum | 1 |
| Oil processing plants | 1 |
| Space | 1 |
| Telecommunications | 1 |
| Tennis | 1 |
| Textile industry | 1 |
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