细纱工序是成纱的一道关键工序，细纱机性能的优劣对成纱的产量和质量都有重要的影响。 目前，国内棉纺厂所使用的细纱机大多采用总轴传动方式，落纱过程通过人工操作完成。

The spinning working procedure is the most important one of the resultant yarn spinning, the capability of the spinning frame affects a lot to the crop and the quality of the resultant yarn.

youdao

纱幕落了！—这一切我早就见过。

Some veil did fall, -i knew it all of yore.

youdao