导线间距-指定正方形，长方形或间距中心至中心，清除打开或网线数的专业配置。
Wire spacing - Specify square, rectangular or specialty configuration with wire spacing center-to-center, clear opening or mesh count.
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。
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.
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