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| 数字式检测器; 数字检波器; 断续〔计数〕探测器 | |||
| 计数探测器; 断续探测器 | |||
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digital detector : 14 phrases in 6 subjects |
| Air defense | 2 |
| Electronics | 3 |
| Geophysics | 1 |
| Metallurgy | 4 |
| Oil / petroleum | 1 |
| Space | 3 |
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