| 单词 | fine boring |
| 释义 | > as lemmasfine boring fine boring n. the action or process of smoothing the inside of a bore (bore n.1 2a) in a metallic object, esp. the barrel of a gun. ΘΚΠ society > armed hostility > military equipment > production and development of arms > [noun] > manufacture of firearms and ammunition > processes in fine boring1789 chambering1827 percussioning1846 coiling1862 reinforcing1868 actioning1871 blowing1881 tubage1882 flint-knapping1887 chase-hooping1888 zeroing1908 sighting-in1958 1789 tr. G. F. Magné De Marolles Ess. Shooting ii. 20 It now remains to smooth the inside of the barrel, and remove the marks left by the boring instrument. This operation is termed fine boring. [No corresponding sentence in the French original.] 1813 ‘T. Martin’ Circle Mech. Arts 393/1 The French use hard solder that requires great heat, which is apt to injure the inside [of the gun] so much as to require a repetition of fine-boring. 1890 Stevens Indicator Oct. 299 The next step in construction is the fine boring which is accomplished by a succession of reamers used with a special lubricant, which insures the hole to be the exact size of the reamer. 1919 Amer. Machinist 3 July 14/2 For fine boring a head of the type illustrated..is employed. 1991 Metalworking Production Sept. 86 (advt.) Our finishing processes produce very tight tolerance bores..very tight finishes..and very fast stock removal rates (faster than reaming and fine boring). 2005 H. Yamagata Sci. & Technol. Materials in Automotive Engines ii. 38 To expose Si particles, the bore surface is chemically etched or mechanically finished after fine boring. < as lemmas |
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