ultrasonic perforating machine 超声波钻床
stamp perforating machine 邮票打孔机
spark-erosion perforating machine 电火花穿孔机 ; 便捷式电火花穿孔机
laser beam perforating machine 激光打孔机
sheet metal perforating machine 金属薄板冲孔机
sheet-metal perforating machine 金属薄板冲孔机
electrical impulse perforating machine 电脉冲穿孔机
sheetmetal perforating machine 金属薄板冲孔机
Perforating Machine IBM's first patent (issued July 25, 1911) described an invention related to punched-card tabulation.
美国专利＃998631：打孔机 IBM的第一项专利（1911年7月25日发布）介绍有关打孔卡制表的一项发明。
This machine is equipped with embossing, perforating and automatic cutting device.
本机配有压花、打孔、自动分切装置。
This machine is auxiliary equipment for rewinding perforating toilet paper machine and diamond paper machine.
本机为复卷打孔卫生纸机、方巾纸机的辅助设备。
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