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X-ray emission spectrum | |||
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X-ray emission spectra |
射线发射谱 : 50 phrases in 12 subjects |
Agriculture | 1 |
Chemistry | 1 |
Earth sciences | 11 |
Ecology | 2 |
Electronics | 13 |
Geology | 4 |
Information technology | 1 |
Metallurgy | 6 |
Oil processing plants | 2 |
Space | 1 |
Technology | 7 |
Water resources | 1 |