 |
| |||
| 有效磁场 | |||
| ★ 有效场 | |||
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effective-field : 21 phrases in 14 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Electricity | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Geophysics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Space | 2 |
| Technology | 6 |