... Pulse Code Modulation 脉冲编码调制; Pulse Count Modulation 脉冲计数调制; Punch-Card Machine 穿孔卡片机, 凿孔机 ...
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electronic punch card machine 电子穿孔卡片机
Punch card machine 打卡机 ; 纸板打孔器 ; 洞卡机 ; 卡片穿孔机
electronic punch-card machine 电子穿孔卡片机
electronic c punch card machine 电子穿孔卡片机
Here’s Herman Hollerith’s punch-card tabulating machine designed for the 1890 census–a predecessor of modern computers, and the product of a company that, after several mergers, evolved into IBM.
这种机器是为1890年的人口普查设计的,而它正是现代计算机的前身。 生产这种机器的公司,几经合并,成为IBM公司。
Punch card tabulating machine invented by Herman Hollerith.
赫尔曼·霍尔瑞斯发明穿孔卡片制表机。
Both the attendance machine and external card reader are mounted on the wall. A mental wall or gate will shorten greatly the distance to punch card, even make it unable to work.
本考勤机和外置的打卡头都是安装在墙壁上使用的,但是如果安装在金属墙壁或金属门上,将明显缩短打卡距离,甚至完全不能打卡。
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