作为舰艇航行操作仿真训练系统课题的关键组成部分，它提供了一个用软件模拟传统硬件的方法，结果表明是确实可行的。

As a key com-ponent of vessels simulation - training system, it offers a piece of method which using software to imitate classical hardware, and indi-cating to be really feasible.

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属性确定了用户在一个屏幕上可以看到什么；操作确定了用户在每个屏幕上可以做什么；并且关联关系确定了航行路线。

Attributes identify what the user can see on a screen; operations identify what the user can do on each screen; and associations identify navigation paths.

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采用混合GPS辅助航行，该设备能够支持搜索和救援(SAR)操作。

Using hybrid GPS-aided navigation, the unit can support search and rescue (SAR) operations.

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