keypunching

n.

穿孔；

Keypunching
Keypunching
Keypunching Manual. Third Edition.
Easily applied principles of keypunching
Data Entry without Keypunching: Improved Preparation for Social-Data Analysis
Letter Ruling 83-50: Keypunching Agreements; Processing Customer Furnished Data
Problems in the conversion of bibliographical data—A keypunching experiment
A Comparison of the Speed and Accuracy of Reading Aloud and Keypunching Digits
Problems in the conversion of bibliographical data - A keypunching experiment 
A study on the allocation of middle-aged employees on keypunching operation. : Part I. Aptitude tests and its relation to trainning ...