navigation safety communication

例句：

1. 1. The new navigationsafety communication system has greatly improved our workefficiency.
   新的导航安全通信系统大大提高了我们的工作效率。
2. 2. In the event of an emergency,the navigation safety communication system is crucial forensuring everyone's safety.
   在紧急情况下，导航安全通信系统对于确保每个人的安全至关重要。
3. 3. The company has invested heavily in developinga high-quality navigation safety communication systemto meet international standards.
   该公司投入大量资金开发高质量的导航安全通信系统，以满足国际标准。