The balloon control-rings used in ring frames divide the spinning balloon into two parts:the upper one and the lower one.

环锭细纱机安装气圈环后将形成上下两段气圈。

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The balloon control-rings used in ring frames divide the spinning balloon into two parts:the upper one and the lower one.

环锭细纱机安装气圈环后将形成上下两段气圈。

youdao