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not detected | |||
non-detection; non-readout; not detectable (的); undetection | |||
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not detected; not detectable |
未 检出: 14 phrases in 10 subjects |
Animal husbandry | 1 |
Aviation | 1 |
Communications | 1 |
Construction | 1 |
Economy | 1 |
Electronics | 1 |
Geology | 1 |
Space | 2 |
Technology | 4 |
Telecommunications | 1 |