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X-ray spectrometry |
线分 光 法 : 40 phrases in 10 subjects |
Animal husbandry | 4 |
Automobiles | 1 |
Compressors | 1 |
Electronics | 25 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Geology | 2 |
Metallurgy | 3 |
Steel production | 1 |
Water resources | 1 |