The usual safeguard against data errors is to have all the data punched twice .
通常防止数据出现错误的措施是把全部数据都穿孔两遍。
Punch card: card punched with a pattern of holes encoding data for storage and reading.
穿孔卡：依照固定模式打孔，作为代码，贮存和阅读资料的卡。
The usual safeguard against data errors is to have all the data punched twice.
通常防止数据出现错误的措施是把全部数据都穿孔两遍。
A device that reads or senses the hole patterns in a punched tape, transforming the data from the hole patterns to electrical signals.
读入或感知穿孔纸带上的穿孔模式，将它所代表的数据转换成电信号的一种设备。
Invented by a young census worker named Herman Hollerith, it automatically sorted data by a code of holes punched in Manila CARDS.
这是一位名叫赫尔曼·霍勒·里斯的青年人口普查工作者发明的。该装置通过马尼拉纸板上的穿孔代码能自动分类整理数据。
An ordered collection of related data (a computer file) as held on punched CARDS.
存放在穿孔卡片上相关数据(计算机文件)的有序集合。
By 1890, Herman Hollerith, an American engineer, had perfected the first data-processing machine to use punched CARDS.
由1890年，邱礼霍列瑞斯，一名美国工程师，有完善的第一个数据处理设备使用拳打卡。
Paper tape Strip of paper which records data as a series of punched holes arranged in "channels" or "tracks" across the width. Also called Perforated tape, punched tape.
用连续打孔的方法记录数据的长条纸带。小孔横过纸宽，以“通道”或“轨道”排列。亦称穿孔纸带。
A card on which binary coded data are recorded with recording density larger than a punched card. The recorded data can be readout by optical or magnetic readers.
一种二进制编码数据卡片，其记录密度大于穿孔卡片。所记录的数据可由光学或磁学读卡机读出。
This paper introduces a way how to develop cold punched dies CAD system with AUTOCAD software interfaces, The main model and data structure is described in detail.
讨论了如何利用AUTOCAD的软件接口图形交换文件开发冷冲模CAD系统，对冷冲模CAD系统的主要模块，数据结构进行了详尽的描述．。
A card on which binary coded data are recorded with recording density larger than a punched card.
一种二进制编码数据卡片，其记录密度大于穿孔卡片。
A card on which binary coded data are recorded with recording density larger than a punched card.
一种二进制编码数据卡片，其记录密度大于穿孔卡片。
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