| 单词 | screw tool |
| 释义 | > as lemmasscrew tool screw tool n. now rare a tool used for cutting the thread of a screw, typically having a toothed edge which is pressed against the object as it is turned on a lathe. ΘΚΠ society > occupation and work > equipment > machine tool > other specific machine tools > [noun] > machine for cutting screw-threads > tools screw tool1797 chaser1847 hob1873 1797 Jrnl. Nat. Philos., Chem., & Arts July 160 The screw-tool will be much more regular than the screw it was made from. 1881 J. J. Holtzapffel Hand or Simple Turning (1976) 108 The screw..is then cut with a screw tool corresponding to the thread of the guide. 1938 Mech. World & Engin. Rec. 2 Sept. 233/2 For screwing ends of pipes for fitting flanges the pipe would be secured at centre height in blocks..the screw tool being fitted in the faceplate toolholder. < as lemmas |
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