首先，通过采用复合式结构展宽抑制元件频带。

First, effective frequency band of component is widened by compound structure method.

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该课题的研究将为复合式旋流器的结构设计和流场特性分析提供有益的参考。

It is important to provide the beneficial reference and the flow field characteristic research for structural design on hydrocyclones.

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文章介绍了复合式推进操纵控制器的原理、结构、性能指标和特点。

This article introduces the principles, structure, characteristic index and features of compound propulsive steering controller.

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