Second process: After operated by the front forward gas baffler, the paper reciprocates to the drum of the second layer to perform flanging of the backside.
纸张经后推气挡板之作用，再往复至第二层滚筒完成
边折边。
Second process: After operated by the front forward gas baffler, the paper reciprocates to the drum of the second layer to perform flanging of the backside.
纸张经后推气挡板之作用，再往复至第二层滚筒完成边折边。
Third process: After operated by the back forward gas baffler, the paper reciprocates to the drum of the third layer to perform flanging of the front side.
纸张经推气挡板之作用，再往复至第二层滚筒完成后边折边。
声明：以上例句、词性分类
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