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打孔机 dǎkǒngjī
busin. eyelet machine
eng.geol. boring machine
fin. keypunch machine
hydroel.st. punch
math. card punch; key punch; punching machine
mech.eng. punch press
met. perforator
oil perforating machine
plast. grommeter
tech. hole-punching machine; pin-hole plotter; puncher; punching bear
打〔冲〕孔机
construct. eyelet machine
打孔 机
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