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| 工程和技术服务 | |||
| 工程及技术服务 | |||
| English thesaurus | |||
| |||
| ETS | |||
|
engineering and technical services : 3 phrases in 3 subjects |
| Aviation | 1 |
| Earth sciences | 1 |
| Space | 1 |
| |||
| 工程和技术服务 | |||
| 工程及技术服务 | |||
| English thesaurus | |||
| |||
| ETS | |||
|
engineering and technical services : 3 phrases in 3 subjects |
| Aviation | 1 |
| Earth sciences | 1 |
| Space | 1 |