radio-frequency chart

All Chinese Hits, the one and only Internet radio station devoted to All Chinese chart-toppers, hottest hits, and retro classics! Nothing but All Chinese!

华流至尊，史上唯一致力于奉献全中文流行新锐、榜单金曲、怀旧经典的网络广播电台！惟中文独尊，无暇其余！

Radio AtoN, Radar, Gyro compass, Global Navigation Satellite System ( GNSS), Electronic Chart Display and Information System ( ECDIS), Automatic Identification System ( AIS), etc. have been applied to a large extent to ensure safety of navigation.

无线电航标、雷达、电罗经、全球导航卫星系统（GNSS）、电子海图显示与信息系统（ECDIS）、船舶自动识别系统（AIS）等的相继应用，在很大程度上保证了航海安全。