“PNT”是“Positioning， Navigation， and Timing”的缩写，意思是“定位、导航和计时”。英文缩略词PNT的例句：Global Positioning System is considered as the most important position navigation and timing development。
全球定位系统（GPS）被认为是当前定位导航授时设备中最重要的发展。The Global Positioning System ( GPS ) has a wide range application such as topographical survey， navigation and dynamic positioning of aircraft， highly precise timing and communication。

GPS系统在全球范围内的地形测量、飞行器导航和动态定位、高精度的授时和通信等领域得到了广泛的应用。