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| 先进跟踪和数据中继卫星系统 (美国) | |||
| English thesaurus | |||
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| ATDRS | |||
| ATDRS (Space) | |||
|
advanced tracking and data relay satellite : 1 phrase in 1 subject |
| Aviation | 1 |
| |||
| 先进跟踪和数据中继卫星系统 (美国) | |||
| English thesaurus | |||
| |||
| ATDRS | |||
| ATDRS (Space) | |||
|
advanced tracking and data relay satellite : 1 phrase in 1 subject |
| Aviation | 1 |