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1·For the first time, I had the opportunity to use a GPS Navigator.

这是我第一次有机会可以使用GPS导航仪。

2·Note: When insert earphone in GPS navigator to listen music, the speaker output will be closed automatically.

注：当在使用插式耳机听音乐时，系统会自动关掉外部扬声器的声音输出。

3·This is of practical value for the improvement of the software design and for the correct operation of the present GPS navigator.

这对软件设计的改进与正确使用现有的船用GPS接收机都有实际意义。