1。Wh ａ t d ｏ es ｔ he ａ lert nu ｍ b ｅｒ 82 ０ indica ｔ e？A。 A ＩＳ lostB、 T Ｔ lostC. Navte ｘ...
1.What does the alert number 820 indicate?A. AIS lostB. TT lostC. Navtex message receivedD. Cross track alarm2. W...
1.What does the alert number 820 indicate? A. AIS lost B. TT lost C. Navtex message received D. Cross track al...
实用文案标准文档23’’高分辨率多彩液晶显示屏航海雷达（ARPA和AIS功能于一体）型号FAR-2817/2827/2837S产品说明书1、先进的信号处理,改进...
