keypunches

听听怎么读

英

美

是什么意思

n.键控芽孔机；盘式穿孔机；键盘穿孔机

v.用打孔机打孔

网络键控穿孔机；按键打孔；键盘凿孔机

变形

复数：keypunches 过去分词：keypunched 现在分词：keypunching

英英释义

Keypunch

A keypunch is a device for precisely punching holes into punch cards at specific locations as determined by the keys struck by the operator.

以上来源于:Wikipedia

学习怎么用

权威例句

Columbia University Computing History: IBM Keypunches
Computer key-punch work-station having adjustable copy support-shelf
Fatigue assessment on key punch operators, typists and others
Sequential Observation on Key Punches : Report II
Key Punch Instruction In High School.
Rapid Structure Searches via Permuted Chemical Line Notations. II. A Key-Punch Procedure for the Generation of an Index for a Smal...
A handbook of modern keypunch operation
Is Keypunch Verification Really Necessary?
Uncovering ‘hidden’ contributions to the history of Digital Humanities: the Index Thomisticus’ female keypunch operators
Unidentified young people converse during Liberty Mutual keypunch training.

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