通信设备提供商面临市场和成本的双重压力。
The communications equipment provider faces double pressure of the market and cost.
在内部和外部网络间进行安全和无缝漫游，在双重和三重隧道间切换，以及保护归属代理和移动节点间的通信。
Secure and seamless roaming between internal and external networks, switching between double and triple tunnel, and protecting communication between home agent and mobile node.
在内部和外部网络间进行安全和无缝漫游，在双重和三重隧道间切换，以及保护归属代理和移动节点间的通信。
Secure and seamless roaming between internal and external networks, switching between double and triple tunnel, and protecting communication between home agent and mobile phone.
拥有双重光纤电缆连接的单一光纤模块依据通信系统可以提供点对点，星状，树状以及环形布局。
Single fiber optic modules with dual fiber cable connections provide redundant point-to-point, star, tree and ring topologies, depending on the communication system.
新的双重抗电磁干扰蜂窝式空气过滤器具有出色的电磁干扰屏蔽性能，专门设计用于电子器件、电信和数据通信设备。
The new Dual EMI Honeycomb air filter provides superior shielding against electromagnetic interference and is specially designed for electronics, telecom and datacom equipment.
本文提出了一种保密通信的新设想，也就是在通常的混沌通信系统的收发端，各增加一个时变系统，可以达到“双重加密”的目的。
A new scheme in chaos security communication, the time-variable system added in the transmission and reception unit, is proposed in this paper. This way can make the system be double-secure.
在新的竞争形势下，通信运营商面临来自客户对服务和股东对企业业绩的双重压力。
At the new competitive situation, the communication operators are facing dual pressure from customer to service and shareholders to performance of the enterprises.
在市场和技术的双重推动下，移动通信走向宽带化、智能化、多业务化已经是一个必然的趋势。
Under the push of the market and the techniques, it's an inevitable trend that the mobile telecommunication will be broad-band and intelligence and carry various services.
在市场和技术的双重推动下，移动通信走向宽带化、智能化、多业务化已经是一个必然的趋势。
Under the push of the market and the techniques, it's an inevitable trend that the mobile telecommunication will be broad-band and intelligence and carry various services.
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