| 释义 |
cordonnier system
同位孔系统
An information-retrieval system using peek-a-boo cards; that is, cards with small holes drilled at intersections of coordinates (column and row designations) to represent document numbers.
一种使用同位穿孔卡片的信息检索系统。卡片 在坐标(行、列标识)交点处钻有小孔,用以表示文献编号。 |