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| 词头谱; 光谱; 光〔频，能〕谱的 | |||
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spectro : 25 phrases in 10 subjects |
| Automobiles | 1 |
| Earth sciences | 3 |
| Electronics | 3 |
| Geology | 1 |
| Geophysics | 3 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Polygraphy | 1 |
| Space | 1 |
| Technology | 8 |
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