| 摘要 |
The invention relates to a device for matching data from a first data category with data from a second data category, characterised in that it comprises: an inner tube (1) bearing data (3) from the first category arranged in a line along the tube generatrices; an outer tube (4) which contains the inner tube (1) and which is fitted with bearings (9) that enable the inner tube to turn around its axis inside said outer tube. The wall of the outer tube (4) is provided with openings (5, 6) which are distributed on a line parallel to the axis of the tube, each window being marked on said outer tube with a piece of data from the second category.
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