Several types of spinning systems have been used in making woolen yarns, for example mule spinning, ring - frame spinning, etc.

生产粗梳毛纱的细纱机种类很多，例如走锭纺纱机、环锭纺纱机等。

youdao

Several types of spinning systems have been used in making woolen yarns, for example mule spinning, ring - frame spinning, etc.

气流纺纱是一种常用的纺纱方法，并且已经取代了一些环锭纺纱设备。

youdao