Having 32 flash rhythms, it is suitable for road obstructive light as well as small navigational lights in inland waterways and along coastline.
它可储存32种闪光灯质，适用作小型岸标灯、浮标灯以及公路障碍灯。
2
Car radio buttons that, for example, light when selected, even a needle's position on a dial, can provide navigational information if integrated appropriately with the software.
例如，选择单选按钮时亮灯。如果和软件进行适当集成，即使是刻度盘上的指针位置也能够提供导航信息。
3
This paper puts forward an accurate method of calculating light maximum visible range and gives suggestion on compiling List of Light (Chinese edition) and navigational text-book.