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| earthing clamp; ground ring | |||
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接地环 : 20 phrases in 10 subjects |
| Astronautics | 1 |
| Electric machinery | 2 |
| Electronics | 5 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Oil / petroleum | 2 |
| Technology | 3 |
| Telecommunications | 3 |
| Wind Energy | 1 |
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