 |
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| European Telecommunications Network Operators' Association | |||
| Vereniging van Europese Telecommunicatie Netwerk-Exploitanten | |||
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European Telecommunications Network Operators' Association : 2 短语, 1 学科 |
| 通讯 | 2 |
|
| |||
| European Telecommunications Network Operators' Association | |||
| Vereniging van Europese Telecommunicatie Netwerk-Exploitanten | |||
|
European Telecommunications Network Operators' Association : 2 短语, 1 学科 |
| 通讯 | 2 |