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leading mark (导航); range beacon (导航); range mark (导航); transit beacons (导航); transit marks (导航) |
叠标 : 41 phrases in 7 subjects |
Advertising | 1 |
Agriculture | 1 |
Information technology | 1 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 35 |
Telecommunications | 1 |