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iridium satellite
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iridium satellite
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移动卫星通信
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iridium satellite
铱星
利用卫星群在低地球轨道实现卫星移动通信的星座系统。用户可以在任何时间、任何地点通过该系统实现无线电定位、接打电话和收发数据等。
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police compensation
police competency
police control technology
police cooperation along the Belt and Road
police cooperation zone
police criminal compensation
police criminal law enforcement
police crisis negotiation
police cryptography
police devices
police dog
police dog appliying technnology
police dog's technology
Police Education and Training
police education and training
police emotion management
police epaulets
police equipment
Police Equipment Design Committee of Ministry of Public Security
police external supervision
police force composition at crime scene
police force dispatch
police geographic information platform
police guarantee culture
police image and discipline
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