keypunching

keypunching

美 　英

• n.键控芽孔机；盘式穿孔机；键盘穿孔机
• v.用打孔机打孔
• 网络键控打孔机

词形变化

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

英汉解释

n.	1. 键控芽孔机 2. 盘式穿孔机 3. 键盘穿孔机
v.	1. 用打孔机打孔

英英解释

n.	1. a machine, operated by keyboard, that punches holes in cards or paper for use in a data-processing system, now largely obsolete
v.	1. to use a keypunch to punch holes in a card or paper tape for data entry into a computer