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| aide de navigation (for the blind); aide d'orientation (for the blind) | |||
| aide à la navigation | |||
| aide à la navigation aérienne | |||
| aides à la navigation | |||
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| aides à la navigation | |||
| 英语 词库 | |||
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| Any visual or electronic device, airborne or on the surface of the earth, that provides point-to-point guidance information or position data to aircraft in flight | |||
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navigation aids : 40 短语, 6 学科 |
| 导航 | 1 |
| 生命科学 | 1 |
| 矿产品 | 1 |
| 航空 | 13 |
| 运输 | 18 |
| 通讯 | 6 |