最后，还有一些章节介绍不同技术如何应用在不同的行业中，比如汽车制造、铁路、空中交通控制和通信。
Finally, several chapters are devoted to how the various techniques have been used in various industries, such as automotive, railways, air traffic control, and telecommunications.
移动通信中手机的机卡分离技术和空中激活技术是实现电信服务与电信终端相分离的重要途径。
The technologies of set-card separation and OTA (Over the Air) are both the important measures in mobile communication systems to realize the separation of the wireless services and terminals.
讨论了第3代移动通信系统的空中接口安全保护技术，包括数据机密性保护、数据完整性保护。
The air interface security technologies for the protection of data confidentiality and data integrity in 3g are discussed.
用软件无线电技术实现的调制解调灵活性好，可以通过空中下载实现不同的调制方式，从而适应不同的通信体制。
It is flexible for the modulation and demodulation by software, and it may realize different modulation mode through the airborne downloading, therefore it suits the different communication systems.
空中下载技术是一种通过移动通信的空中接口对移动终端内存及SIM卡数据进行远程管理的技术。
Over-the-air technology which download the data of EMS memory and SIM card in mobile station through the air interface of mobile communication present a solution to these challenges.
空间光学联网技术计划将为下一代超宽带宽、多信道空中与太空通信网络开发基础技术。
Finally, the space Optical Networking technology project develops the technology base for the next generation of ultra-wide-bandwidth, multi-channeled, air and space-based communications networks.
空间光学联网技术计划将为下一代超宽带宽、多信道空中与太空通信网络开发基础技术。
Finally, the space Optical Networking technology project develops the technology base for the next generation of ultra-wide-bandwidth, multi-channeled, air and space-based communications networks.
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