 |
| |||
| 示踪同位素; 同位素指示剂 | |||
| tracer isotope: 25 phrases in 11 subjects |
| Desert science | 2 |
| Earth sciences | 1 |
| Ecology | 1 |
| Engineering geology | 1 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Life sciences | 1 |
| Metallurgy | 5 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 8 |
|
| |||
| 示踪同位素; 同位素指示剂 | |||
| tracer isotope: 25 phrases in 11 subjects |
| Desert science | 2 |
| Earth sciences | 1 |
| Ecology | 1 |
| Engineering geology | 1 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Life sciences | 1 |
| Metallurgy | 5 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 8 |