Aid to Navigation  航路标志; 助航设备

aid to navigation in lock area  数码相机; 船闸航标; 电子对抗

aid to navigation on canal  运河航标

aid to navigation on inland waterways  内河航标

aid-to-navigation  助航

audible aid to navigation  听觉助航设施; 声响助航; 声响助航器材

automatic satellite computer aid-to-navigation  人造卫星计算机辅助自动导航

auxiliary input device aid-to-navigation  辅助输入导航装置

private aid to navigation  私用助航标

RATAN Radar and Television Aid to Navigation  用于导航的雷达和电视设备

short range aid to navigation  近程导航

aid to hearing  助听器

aid to learning  学习工具

aid to melting  助熔

air navigation aid  助航设备

anti-grounding navigation aid  防搁浅导航设备

chinese aid to foreign countries  对外援助

construction of navigation aid  航标建设

democracy aid to Africa  民主援非