 |
| X -ray spectrometer: 49 phrases in 11 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Chemistry | 1 |
| Earth sciences | 7 |
| Electronics | 6 |
| Geology | 5 |
| Metallurgy | 4 |
| Space | 15 |
| Technology | 6 |
|
| X -ray spectrometer: 49 phrases in 11 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Chemistry | 1 |
| Earth sciences | 7 |
| Electronics | 6 |
| Geology | 5 |
| Metallurgy | 4 |
| Space | 15 |
| Technology | 6 |