| 单词 | achromatism |
| 例句 | Most insects, when exposed for any length of time to strong light, fade or lose color, and the only way to prevent such achromatism is to exclude the light. Directions for Collecting and Preserving Insects 2012-03-28T02:00:31.483Z The state or quality of being achromatic; as, the achromatism of a lens; achromaticity. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z Leonhard Euler in 1747 had suggested that achromatism might be obtained by the combination of glass and water lenses. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" The perfect achromatism of a reflector is, of course, a great advantage, but the chromatic aberration of refractors is now so well corrected that their inferiority in that respect may be disregarded. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers A long list of indictments might indeed be brought against the eye—its opacity, its want of symmetry, its lack of achromatism, its partial blindness. Six Lectures on Light Delivered In The United States In 1872-1873 As the diameter of the lens was so small in comparison with its focal length, its want of achromatism was inappreciable. Experimental Determination of the Velocity of Light Made at the U.S. Naval Academy, Annapolis If all three constants of reproduction be achromatized, then the Gaussian image for all distances of objects is the same for the two colours, and the system is said to be in ``stable achromatism.'' The Project Gutenberg Encyclopedia Volume 1 of 28 He will find that he has not given exactly the proper curves to secure achromatism. Side-Lights on Astronomy and Kindred Fields of Popular Science The absence of this error is termed achromatism, and an optical system so corrected is termed achromatic. The Project Gutenberg Encyclopedia Volume 1 of 28 Thus examined, the departure of the eye from achromatism appears very gross indeed. Six Lectures on Light Delivered In The United States In 1872-1873 Newton failed to perceive the existence of media of different dispersive powers required by achromatism; consequently he constructed large reflectors instead of refractors. The Project Gutenberg Encyclopedia Volume 1 of 28 In uniting three colours an ``achromatism of a higher order'' is derived; there is yet a residual ``tertiary spectrum,'' but it can always be neglected. The Project Gutenberg Encyclopedia Volume 1 of 28 |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。