After a friend posted photos of it on Reddit. com, and readers identified it as a GPS tracker, the FBI showed up at Afifi's apartment demanding he return the device.
他的一个朋友将照片放到了Reddit网上，读者识别出这是一个GPS跟踪器，FBI的人出现在亚瑟·阿菲费的住所，要求他归还那个设备。
The star tracker is the primary part of airborne celestial navigation device. Random vibration is an important invalidation factor of the star tracker.
星体跟踪器是机载天文导航设备的重要组成部分，随机振动是其结构失效的重要因素。
After estimation of PRI, the PRI tracker (also called wheel tracker) is designed based on Complex Programmable Logic Device (CPLD).
在PRI参数估计之后，设计了基于可编程逻辑器件(CPLD)的PRI跟踪器(或称为飞轮跟踪器)。
After estimation of PRI, the PRI tracker (also called wheel tracker) is designed based on Complex Programmable Logic Device (CPLD).
在PRI参数估计之后，设计了基于可编程逻辑器件(CPLD)的PRI跟踪器(或称为飞轮跟踪器)。
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