| DRAFT DICTIONARY CBF/imgCIF Extensions Dictionary | Draft version 1.5 for comment | 
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Definition:
        The value of this data item is the identifier of one of
               the axes in the set of axes for which settings are being
               specified.
               Multiple axes may be specified for the same value of
               _array_structure_list_axis.axis_set_id.
               This item is a pointer to _axis.id in the
               AXIS category.
Type: code
Mandatory item: yes
Category: array_structure_list_axis
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