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beta ray spectrometer | |||
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gamma- ray spectrometer | |||
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alpha ray spectrometer |
射 线谱仪 : 80 phrases in 15 subjects |
Agriculture | 3 |
Air defense | 1 |
Automobiles | 1 |
Aviation | 1 |
Chemistry | 1 |
Earth sciences | 8 |
Electronics | 18 |
Environment | 1 |
Geology | 2 |
Metallurgy | 7 |
Oil / petroleum | 2 |
Polymers | 1 |
Rail transport | 1 |
Space | 24 |
Technology | 9 |