punched hole
英
美
- 穿孔
双语例句
- One of the horizontal lines on a punched card.
穿孔卡片上的水平行。 - A device which reads data from punched cards and sends them to the computer.
从穿孔卡片上读出数据送入计算机的一种装置。 - The paper presents the principle of no burr doub le-faced striking hole and work process.
介绍了无毛刺双面冲孔的原理及手把体模锻件双面冲孔的工作过程。
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