Smart power grids, GPS navigation, air travel, financial services and emergency radio communications can all be knocked out by intense solar activity.
智能电网，GPS导航，飞机航行，金融服务，以及紧急无线电联络都可能受剧烈的太阳活动波及无法正常运行。
Car theft, equipment, including radio, air conditioning, navigation systems, audio combination, airbags.
车内装备，包括防盗、无线电、冷气、导航系统、音响组合、安全气袋之类。
Other than just fly the aeroplane, you have to learn air law, navigation, meteorology, radio communications and you have to understand the effects of flying on the human body.
除了开灰机，你还得学习航空法律，导航，气象学，无线电通讯，你得明白飞行对人体的影响。
Obviously the foundation of electronic navigation system can not meet this need, So human envisaged the possibility of radio transmitting stations on the air.
显然地基电子导航系统不能满足这种需要，于是人类就设想是否可以将无线电发射参考站建立在空中。
Obviously the foundation of electronic navigation system can not meet this need, So human envisaged the possibility of radio transmitting stations on the air.
显然地基电子导航系统不能满足这种需要，于是人类就设想是否可以将无线电发射参考站建立在空中。
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