keypunched

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

Fill Device
Press-formed keyway for headrest mounting tube
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Recyclable, strong thermosets and organogels via paraformaldehyde condensation with diamines.
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Storage of gas chromatographic data using key-punched IBM cards
USING A SIMPLE AUTOMATIC KEY PUNCHEDMICROCONTROLLER BASED ATMEGA8535

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