在本文第五章中，为了提高多馈入交直流系统的暂态稳定性，提出一种直流非线性变结构附加功率调制器。
In chapter 5, to improve transient stability of multi-infeed HVDC transmission systems, a kind of HVDC additional power modulator based on nonlinear variable structure theory is proposed.
在本文的第五章提出了抗干扰技术，主要指出了干扰的来源以及怎样抑制干扰。
Anti-interference technology is proposed in chapter five, which points out that the source of interference and how to restrain interfering mainly.
最后，本文第五章对Z公司在全球范围内建立单证中心所带来的预期效益进行了分析，并对相关风险进行了预测。
Last but not the least, the fifth chapter analyzes the anticipated benefits and related risks of Company z's set-up of documentation center in a global scope.
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