perforating machine
[计] 穿孔机；割缝机
perforating machine中文，perforating machine的意思，perforating machine翻译及用法
2026-08-13 08:01 浏览次数 30
perforating machine 例句
英汉例句
perforating machine ibm's first patent (issued july 25, 1911) described an invention related to punched-card tabulation.
美国专利＃998631：打孔机ibm的第一项专利（1911年7月25日发布）介绍有关打孔卡制表的一项发明。
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