该项目的目的是，试验能够降低成本并对农民的优先重点作出及时反应的新技术，并将其主流化。
Its goals were to test and mainstream technical innovations that both reduced costs and responded to farmers' priorities.
本文主要介绍虚拟带库解决方案的工作原理、适用环境以及几个主流厂商的产品，以便更多的读者了解这种新技术。
The paper mainly introduced the working principle, adaptive environment and products of some major firms of the virtual tape base in order to make the readers know more the new technique.
介绍了几种当前的移动多媒体广播技术方案，对几种主流方案进行了比较，并概述了近期新涌现出的几种新技术方案。
This paper explains the leading technological solutions of mobile multimedia broadcasting at present, of which three are compared briefly, and finally introduces several new technical solutions.
介绍了几种当前的移动多媒体广播技术方案，对几种主流方案进行了比较，并概述了近期新涌现出的几种新技术方案。
This paper explains the leading technological solutions of mobile multimedia broadcasting at present, of which three are compared briefly, and finally introduces several new technical solutions.
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