知行 EDI 规范查询平台™
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X12 EDI Release 00304
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EFI
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EFI14
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Element
X12 EDI Release 00304
EFI
788
Block Length
Quantity of data elements in a block, usually specified in units such as records, words or characters. Synonym for ``block size''.
属性
数据类型
N
必须?
Optional
长度
Min 1 / Max 5
