航海导航 meaning in Chinese

marine navigation

Marine navigation lights
航海导航灯
The system has been applied in the field of weapons , shipping navigation , industry monitor and traffic control because of its low cost and superior visibility
它以低价位高清晰度的优势被广泛应用于军事武器、航海导航、工业监控、交通管理等领域。
Maritime navigation and radiocommunication equipment and systems - radar plotting aids - part 2 : automatic tracking aids ; methods of testing and required test results iec 60872 - 2 : 1999 ; german version en 60872 - 2 : 1999
航海导航和无线电通信设备及系统.雷达标绘仪.第2部分