航海雷达 meaning in English

marine radar

Marine radar reflectors
航海雷达反射器
Radar simulator simulates the shipping navigating and collision avoidance under bad visibility by making use of computer emulation technic , in this way students can learn how to make correct decision in complex marine circumstance
航海雷达模拟器利用计算机仿真技术，模拟在能见度不良的情况下船舶的操纵和避碰，使学员应对复杂海况，做出正确的判断。