Proper functioning of the device’s fans is vital for proper operation.

设备风扇的正常运转对设备的正常运行至关重要。

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The operation characteristics of axial-flow fans can be simulated and the gasping vibration can be calculated precisely with the model.

该模型能够真实地反映出轴流风机的运行特性，并能准确地计算出轴流风机的喘振工况。

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There are four kinds of model of operation, news portal website based on information, official website based on organization, website based on TV's fans and website based on commerce.

基于信息的新闻门户网站、基于机构的官方网站、基于电视迷的网站合基于商业的网站是我国电视媒体网站的主要四种运营模式。

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Ch Supt Matthew Greening told BBC News he thought the operation went well, and that the majority of fans had behaved themselves.

BBC: Violent clashes after Southampton and Portsmouth FA tie

"Hopefully, the bulk of fans will not be unduly troubled by the operation and we hope that what we are doing will help to make the game trouble-free, " he said.

BBC: England fans barred from Germany