Android应用利用选项菜单和文本菜单来运行程序和导航或者跳转到其他应用。
Android applications make use of Option menus and Context menus that enable users to perform operations and navigate to other parts of your application or to other applications.
无论是在最初的地图底部信息栏还是在信息页上，你都可以通过点击一个彩色的显示预计行程时间的图标来开始导航步骤。
You can start the navigation process by tapping on a colored icon showing travel time, either in the initial small bar at the bottom of the map, or on the info sheet.
其次，研究了基于VOR/DME导航台的区域导航飞行程序的设计方法；
Secondly, this thesis investigates the designing methods for VOR/DME-based area navigation flight procedure (RNAV FP).
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