Underdeveloped countries should be assisted by allowing them access to modern technology.
应该通过允许不发达国家使用现代技术来帮助它们。
There are four models of electronic document delivery systems: automatic model, human assisted model, network access model and network subscription model. 8 refs.
实现电子文献传递系统的方式有：自动方式、人工辅助方式、网络访问方式和网络订购方式。参考文献8。
A new random access protocol assisted by fixed relay stations under the transparent mode in multi-hop relay networks over the time division multiple access was presented.
提出时分多址方式下由固定中继节点支持的透明模式下的随机接入协议，通过中继节点与用户间的合作重传来解决多个用户同时接入发生碰撞的问题。
Constructivist learning theory provides solid a theoretical foundation for web-assisted self-access foreign language learning center.
建构主义学习理论为建立和建设网络辅助外语自主学习中心提供了恰当的理论依据和指导。
Constructivist learning theory provides solid a theoretical foundation for web-assisted self-access foreign language learning center.
建构主义学习理论为建立和建设网络辅助外语自主学习中心提供了恰当的理论依据和指导。
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