英语语法分析

Permanent ac servo motor control system of lockstitch sewing machine is introduced.

介绍了一种用于电脑全自动工业平缝机的永磁交流伺服电机及其控制系统。

It is suitable for double thread lockstitch sewing of light or medium weight material.

适用于薄料、中厚度料的双线锁式线缝缝纫。

This lockstitch cylinder arm machine is mainly used in the production of men's outerwear.

这种锁缝筒形横臂机被主要用于男式外套的生产。