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| 延伸服务; 附加服务 | |||
| 扩展服务 | |||
| 长期运行 | |||
| |||
| 超期服现役 | |||
| English thesaurus | |||
| |||
| ES (OS/2) | |||
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Extended Service : 28 phrases in 12 subjects |
| Business | 1 |
| China | 2 |
| Computer networks | 1 |
| Economics | 1 |
| Electronics | 6 |
| Information technology | 4 |
| Law | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Space | 2 |
| Technology | 6 |
| Telecommunications | 2 |