 |
| |||
| effective depth; significant depth | |||
| effective height | |||
| 有效 深度: 26 phrases in 11 subjects |
| Automobiles | 2 |
| Drilling | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Technology | 12 |
| Wind Energy | 1 |
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