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| conexión a tierra; retorno por masa | |||
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| retorno por tierra | |||
| toma de tierra | |||
| English thesaurus | |||
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| e.r. (Vosoni) | |||
| Earth return: 10 phrases in 7 subjects |
| Communications | 2 |
| Electric machinery | 1 |
| Electric traction | 1 |
| Power lines | 1 |
| Technology | 1 |
| Telegraphy | 2 |
| Transport | 2 |