本文主要研究的内容主要包括以下几个方面：（1）以我校现有的300四辊轧机为实验基础，设计了一套七段式气动检测辊。
The thesis mostly include four sections as follow:(1)It designs a seven-piece sample of pneumatic shape measuring roll experimenting upon 300 four-roll machine.
本文主要研究的内容主要包括以下几个方面：（1）以我校现有的300四辊轧机为实验基础，设计了一套七段式气动检测辊。
The thesis mostly include four sections as follow:(1)It designs a seven-piece sample of pneumatic shape measuring roll experimenting upon 300 four-roll machine.
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