| 释义 |
▪ I. mitis1|ˈmɪtɪs|
Also mittis.
[a. G. mitis (grün); from the name of the manufacturer, Ignaz Mitis of Kirchberg (1771–1842).]
mitis green: Scheele's or Emerald green (see emerald 5 d).
1839Ure Dict. Arts 619 Mittis green is an arseniate of copper. 1853Watts tr. Gmelin's Handbk. Chem. VIII. 329 Cupric Aceto-arsenite. Schweinfurt Green, Vienna Green. Imperial Green, Mitis Green. 1892Church Chemistry Paints & Painting s.v. Scheele's Green, Mittis Green.
▪ II. mitis2 Metallurgy.|ˈmiːtɪs|
[Named by the inventor of the process, P. Östberg of Stockholm; app. from L. mītis mild, taken in the sense of mild a. 8 b.]
mitis casting: a method of increasing the fluidity of molten iron (so as to render it possible to prevent the occlusion of air in the casting) by adding a minute quantity of aluminium to the charge in the crucible; also, a casting produced by this process. So mitis-metal, process, etc.
1885T. Nordenfeldt in Ironmonger 9 May Suppl., On ‘Mitis’ Castings. 1886Chamb. Jrnl. 14 Aug. 527/2 The ‘Mitis process’. Ibid. 528/1 In the United States and Sweden, Mitis Metal has already established itself as an article of commerce. 1888Pall Mall G. 6 Sept. 12/1 The 1-20th part of 1 per cent. of aluminium, when added to molten wrought iron will reduce the fusing-point of the whole mass some 500 degrees, and will render it extremely fluid, and thus enable wrought iron (or what are commercially known as ‘Mitis’-castings of the most intricate character) to be produced. 1894Jrnl. Iron & Steel Inst. XLIV. 476 Mitis Castings.—Stambke..describes the method in use at the Mitis foundry at Chemnitz. |