The third part analyzes the technique of communication, especially technical development trend of 3g, and emphasizes to contrast three kinds of 3g technique.
第三部分分析了移动通信技术、尤其是3 G技术的发展趋势，并着重对比了三种主流的3g技术。
Objective To understand importment of drug technical supervision from the development trend of drug quality control.
目的从药品质量控制发展趋势看药品技术监督的重要性。
This article introduces production technical situation of automotive rubber seal strips - at the same time analyzes their materials - specification - structure - performance and development trend.
文中介绍了我国汽车橡胶密封条生产技术的现状，并对其材料、品种、规格、结构、性能及发展趋势进行了分析。
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