Data record unit complete data acquisition, which records analog quantity data, parallel and serial digital data, parallel and serial graphic data from the signal source to CF card.
数据记录单元完成数据采集，把信号源发送的模拟量数据、并行和串行数字量数据、并行和串行图形数据记录到存储设备的CF卡上。
A rectangular file is one which contains the same number of card-images or the same physical record length for each respondent or unit of analysis.
一个长方形档案中，每笔受访者的记录或是每个分析单位都包含相同的卡数或是相同的实体记录长度。
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