片语
marine guidance navigation航海学
marine automatic navigation船舶自动导航
marine integrated navigation system船舶综合导航系统
marine guidance navigation radar船用导航雷达
marine navigation chart[水运]
marine navigation calculator航海计算器
sailing航行,航海;启航;航海术
marine meteorological navigation海洋气象导航
marine radio navigation船舶无线电导航
marine celestial navigation海上导航
seacraft航海术;海轮