If you want to scatter different type of geometry, you can make a parent dummy object and link the child objects to this.

如果你想分散几何不同类型，您可以使家长虚拟对象和链接此子对象。

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The architecture and principle of a video echo simulating system based on PCI buses and DSP (TMS320VC33) is introduced, advances a method of simulating video echo in dummy object condition.

文中介绍一种基于PCI总线和DSP (TMS320VC33)的视频回波模拟系统的组成结构和工作原理，提出一种在虚拟目标环境下视频回波模拟的方法。

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The DictionaryIO class has a single method, export , which expects a Dictionary object and USES it to output a dummy message.

dictionaryio类具有单个方法export，它接受一个Dictionary对象，并使用它来输出假消息。

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