MeSH 搜索器

Punched-Card Systems

Data processing using paper cards with punched holes that represent data.
推出的年份:
副标题
树号: L01.224.085.800
MeSH 单一 ID: D011676
进入的组:
  • Punched Card Systems
  • Punched-Card System
  • Systems, Punched-Card

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