| 释义 |
fine-grain, a.
[f. fine a. 7 + grain n.1]
Having a fine grain (grain n.1 12–15); consisting of particles that are very small (grain n.1 7); spec. in Photogr., containing or composed of particles smaller than normal, so that considerable enlargement of the photograph is possible without any graininess becoming apparent; suitable for producing such photographs.
1927Brit. Jrnl. Photogr. Alm. 1928 758 (Index) Fine⁓grain images, metol developer, Eastman formula. 1928Ibid. 1929 247 Fine-grain developers,..the following metol developer is advocated..for giving greater contrast than the fine-grain developers usually quoted. 1934J. L. Baring tr. Heering's Rolleiflex-Bk. 61 Miniature photography has compelled the industry..to produce fine-grain film. 1937Discovery Jan. 22/2 Users of the popular miniature cameras may remember that some years ago their choice lay between a fine-grain emulsion with a slow speed, necessitating a longer exposure, and a coarse-grained one that did not enlarge so well but had a faster speed. 1963C. R. Cowell et al. Inlays, Crowns & Bridges ii. 6 It is important, therefore, to use a fine⁓grain cement. 1966Lancet 31 Dec. 1429/1 X-rayed separately with an aluminium step-wedge on fine-grain industrial film.
Also fine-grained a. (also fig.).
1538Leland Itin. (1744) VII. 81 Very fayre and fyne greynyd Okes. 1634Peacham Gentl. Exerc. i. iv. 15 They are more blew and finer grained then the other coales. 1799Kirwan Geol. Ess. 148 All the houses of Malta are built of a fine grained limestone. 1838J. M. Spearman Brit. Gunner (ed. 2) 252 The proof of fine⁓grained, or small-arm powder, is with a charge of two drachms from a carbine barrel. 1859F. A. Griffiths Artil. Man. (1862) 92 Fine grained, or musket powder. 1894W. James Coll. Ess. & Rev. (1920) 342 In this sense he is original, for no one has yet attained to writing up the subject in as fine-grained a way as this. 1906Jrnl. Geol. XIV. 695 Phanerocrystalline rocks have been described as coarse, medium, or fine grained, with little effort to fix absolute values for these terms. 1911B. E. Jones Cassell's Cycl. Photogr. 280 Process dry plates are relatively slow in order to secure a fine-grained emulsion. 1939A. Johannsen Descr. Petrogr. (ed. 2) I. iii. 31 If the grains are less than a cubic millimeter in size, but recognizable as individuals, the rock is said to be fine-grained. 1949J. E. Garside Process & Physical Metall. xvii. 288 Resulting from variation in grain size, it is possible to distinguish between fine- and coarse-grained steels. 1965Language XLI. 202 A single fine-grained quantization of acoustic space. |