punch card system

 
  • 穿孔卡片系统

punch card system的用法和样例:

例句

  1. We could use a plain card system where we write out a card for each person with the appropriate facts on each.
    可以采用普通卡片系统,即给每人备一张卡片,记载有关的情况。

punch card system的相关资料:

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