GPS, or global positioning system, is a satellite-based navigation system made up of a network of 24 satellites.

或者说全球定位系统，是一种基于24颗卫星网络的卫星导航系统。

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Using the global specialty technical superiority as well as the sales network, the navigation China strong trend enters the Chinese market hand in hand.

利用全球性专业技术优势以及销售网络，携手航华强势进军中国市场。

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Researchers in the field, such as Ernest Robinson, the head of the Aerospace Corporation's picosatellite project, dream of a day when swarms of nanosatellites (weighing less than 10kg) and picosatellites (weighing less than 1kg) might be used to establish a global navigation and communications network around Mars.

ECONOMIST: Picosatellites

He said it was compatible with the world's other major global satellite navigation systems, and encouraged Chinese and foreign enterprises to help develop terminals that could use the Chinese network.

WSJ: Beijing Launches GPS Rival