| 单词 | straddle mill |
| 释义 | > as lemmasstraddle mill straddle mill n. (see quot. 1909); also as v. transitive. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > work with metal [verb (transitive)] > machine turn?c1335 mill1677 to rough down1829 broach1846 spin1853 plane1875 straddle mill1898 profile1905 jig-bore1939 spark-erode1960 society > occupation and work > equipment > machine tool > other specific machine tools > [noun] > milling > types of cutter side mill1878 straddle mill1898 1898 H. S. Wilson Pract. Tool-maker & Designer i. 15 Select some good-sized straddle or side mills. 1905 W. S. Leonard Machine-shop Tools (ed. 3) xxvi. 436 The straddle-mill..is of course the quickest for shapes having an even number of sides. 1909 Webster's New Internat. Dict. Eng. Lang. Straddle mill, Mech., a milling cutter..commonly used in pairs a fixed distance apart so as to straddle the work, for sizing nuts, boltheads, etc. 1919 H. D. Burghardt Machine Tool Operation ii. xii. 255 When any considerable number of pieces are to be milled it will be advisable to straddle-mill them. 1954 H. W. Porter et al. Machine Shop ix. 312 Straddle milling requires two side-milling cutters. < as lemmas |
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