sewing machine head meaning in English

缝纫机头

Household sewing machine - zigzag lockstitch sewing machine head
家用缝纫机.曲形线缝琐式线迹机头
Industrial sewing machine - model gb flat bed lockstitch sewing machine head
工业用缝纫机. gb型平缝缝纫机机头
Method of sound power levels of noise emitted by household sewing machine head
家用缝纫机机头噪声声功率级的测试方法
Classification and identification signs of household lock stitch sewing machine heads
家用锁线缝纫机机头的分类和表示符号
Identification signs and terms on classification of sewing machine heads for industrial use
工业用缝纫机机头分类的标识符号和术语