信息传送系统，信息传送方法，节点装置，密钥数据管理装置，和记录介质。
Information distribution system, information distribution method, node device, key data management device, and recording medium.
远程教学中信息传送系统是保证教学效果、实现教学信息可靠传送的关键环节。
The information transmission system in the long-distance teaching system is the key link for ensuring the teaching effect and realizing the reliable transmission of the teaching information.
Torch采用RIM的最新款BlackBerry OS 6操作系统，此系统包括为黑莓手机提供的全屏网络浏览器和“下一代”信息传送系统。
It USES RIM's Blackberry 6 operating system which includes an improved mobile web browser and a "next-generation" messaging system.
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