1. 订书机：stapler 小订书机 | stapling machine 订书机 | stapling nail 订书钉

2. 钉书机：stapling collar U形环 | stapling machine 钉书机 | stapling 环套角钢

3. 切断机：stapler 订书机;纤维切断机 | stapling machine 切断机 | star bit 十字形钻头;星形钻头

noun

1. a machine that inserts staples into sheets of paper in order to fasten them together

    Synonym: stapler