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导航系统〔设备〕 | |||
助航设备; 航行设备; 导航设备 | |||
English thesaurus | |||
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aid to air navigation | |||
navigation aids | |||
navigation aid | |||
Navigational Aid | |||
Navigation Aid | |||
navigational aid | |||
navigational aids | |||
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navigation aids |
navaid: 11 phrases in 4 subjects |
Aviation | 4 |
China | 2 |
Space | 3 |
Technology | 2 |