打孔

打孔 [dǎ kǒng]

1. ■ bore; punching; dock; punch; drill a hole; punch a hole; perforate

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常用词组

1. ■ 打孔带 punched tape;

2. ■ 打孔工人 tapper;

3. ■ 打孔机 card punch; pinhole plotter; bore; drill;

4. ■ 打孔卡片 punched card;

5. ■ 打孔摄影 film perforations;

6. ■ 打孔钻头 {木} grooved bit; drill bit