| 单词 | swiss drill |
| 释义 | > as lemmasSwiss drill Swiss drill n. a cylindrical drill with the cutting point shaped into two pyramidal planes. ΘΚΠ society > occupation and work > equipment > piercing or boring tools > [noun] > drill > other drills jumper1769 screw drill1821 stop-drill1843 hand drill1845 Swiss drill1846 traverse-drill1853 crown borer1854 pin drill1858 foot drill1860 perforator1861 pin-bit1873 Archimedean drill1889 paddy1895 stope drill1908 stem1914 screw gun1945 1846 C. Holtzapffel Turning & Mech. Manip. II. 547 It is sometimes called the Swiss drill, and was employed..for making the numerous small holes, in the delicate punching machinery for manufacturing perforated sheets of metal and pasteboard. < as lemmas |
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