Chapter 2 mainly introduce the background and present situation of Unicom.
第二章主要介绍了联通的背景及现状。
This article introduced the background and present situation which are related to the resurgence in grain economic in Russia.
本文介绍了俄罗斯粮食经济开始走出困境的背景与现状。
The background, present research situation and mathematical models of generalized set-valued variational inclusion problems are introduced briefly.
简单介绍了广义集值变分包含问题的背景、研究现状和数学模型；综述了相关的参考文献。
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