The present invention provides an information navigation apparatus and method by using Morse Code.
本发明提供一种利用莫尔斯电码的信息导航装置及其导航方法。
Display apparatus, audio-video navigation system, displaying method and car.
显示装置，音频-视频导航系统，显示方法和汽车。
The frequency synthesizer is a kind of discrete frequency singal generator with high stability, and it is widely used in communication, radar, apparatus and navigation system.
频率合成器是一种频率稳定度较高的离散间隔型频率信号发生器，广泛应用在通信、雷达、仪器仪表及导航系统中。
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