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不用针钱的缝纫机美国研究出一种不用针和线,只靠高频超声波缝合衣服的缝纫机,当使用者把剪裁好的化纤、混纺衣料送入这种缝纫机内时,机器产生的超声波便在两块衣料缝合处振动。
Sewing machine without needle sewing The United States has developed a sewing machine that does not need stitches and threads and sews clothes by only high-frequency ultrasonic waves. When the user puts the trimmed chemical fiber and blended fabric into the sewing machine, the ultrasonic waves generated by the machine are at Two pieces of clothing suture vibration.