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3rd Class Certificate of Navigation：三级航行证书

二级航行证书 2nd Class Certificate of Navigation 0 0 0 0 | 三级航行证书 3rd Class Certificate of Navigation 2 2 0 0 | 一级本地船长 Coxswain Grade 1 19 19 17 17

acoustic navigation：音响导航

acoustic navigation 声学导航 | acoustic navigation 音响导航 | acoustic noise 声响干扰

acoustic navigation transponder：声学导航接收应答器

acoustic mine 音响水雷 | acoustic navigation transponder 声学导航接收应答器 | acoustic navigation 声响航法

Ship's Acoustic Navigation System：船舶声响导航系统

ship 船舰 | ship's acoustic navigation system 船舶声响导航系统 | ship's acoustic navigation system 船用声学导航系统船用水声导航系统

acoustic transponder navigation system：声脉冲转发器导航系统

acoustic test 音响试验 | acoustic transponder navigation system 声脉冲转发器导航系统 | acoustic transponder navigation system 声学应答器导航系统声脉冲转发器导航系统

acoustic transponder navigation system：声学应答器导航系统声脉冲转发器导航系统

acoustic transponder navigation system 声脉冲转发器导航系统 | acoustic transponder navigation system 声学应答器导航系统声脉冲转发器导航系统 | acoustic transponder set 声响应答器

air navigation map：领航图

"导航资料","air navigation information" | "领航图","air navigation map" | "航空摄影测量","air photogrammertic survey"

navigation n. the act of navigating; the passage of ships, etc. over the sea, etc：航行;航海;航空

The sun sank below the horizon. 太阳落到地平线以... | navigation n. the act of navigating; the passage of ships, etc. over the sea, etc. 航行;航海;航空 | aerial navigation 空中航行;航空 ocean navigation...

celestial navigation computer：天文导航计算机

celestial navigation aids 天体导航设备 | celestial navigation computer 天文导航计算机 | celestial navigation instrument 天文航海仪表

celestial navigation trainer：天文导航教练器

celestial navigation periscope 天文导航潜望镜 | celestial navigation trainer 天文导航教练器 | celestial navigation 天文航海

French Fifth Republic：法蘭西第五共和

Freight rate 运费率 | French Fifth Republic 法兰西第五共和 | Frequency 次数;频率

cartographic communication：地图传输 地図通信

■ cartographic analysis 地图分析 地図分析 | ■ cartographic communication 地图传输 地図通信 | ■ cartographic data 制图数据 地図データ