单词 | light source |
释义 | > as lemmaslight source a. As a modifier, as in light beam, light intensity, light ray, light signal, light socket, light source, light wave, etc. ΘΚΠ the world > matter > light > [noun] > ray or beam beamc885 rowc1225 stringc1275 steamc1300 light beama1398 shafta1400 rayc1400 strakec1400 rade?a1563 gleed1566 radiation1570 shine1581 rayon1591 stralla1618 radius1620 rule1637 irradiation1643 track1693 emanation1700 spoke1849 spearc1850 slant1856 sword1866 secondary1921 the world > matter > physics > electromagnetic radiation > light > [noun] > rays or waves rayc1400 tress1423 radiation1570 hair1594 hair1606 irradiation1643 beam1664 light wave1871 OE (Northumbrian) Lindisf. Gospels: Matt. v. 15 Accendunt lucernam et ponunt eam..super candelabrum : bernas ðæccille uel lehtfæt & settas ða uel hia..ofer lehtisern. OE Lambeth Psalter xvii. 29 Quoniam tu illuminas lucernam meam : forðan þe þu onlyhst leohtfætels uel leohtfæt min. a1398 J. Trevisa tr. Bartholomaeus Anglicus De Proprietatibus Rerum (BL Add. 27944) (1975) I. viii. xxx. 513 A liȝt beme [L. radius] is a briȝt streme of a body of liȝt. 1845 T. Carlyle in O. Cromwell Lett. & Speeches II. 361 Straggling accidental lightbeams. 1871 J. Tyndall Fragm. Sci. (1879) II. viii. 110 Different light-waves produce different colours. 1872 Westm. Rev. July 83/1 Stars are seen in the night, and not in the day, although it is demonstrable that in both cases the difference of light intensity between them and the rest of the sky is one and the same. 1908 M. Solomon Electric Lamps ii. 9 Artificial illuminants divide themselves into two groups..according as the light source is a hot or a cold light. 1930 Morning Post 19 July 13/6 An extension of the system of light signals for road traffic. 1950 Sci. News 15 17 Light rays cannot bring about a photo-chemical change unless they are absorbed. 1960 H. Pinter Caretaker ii. 48 There used to be a wall plug..but it doesn't work. I had to fit it in the light socket. 2018 Times (Ireland ed.) (Nexis) 26 Feb. 14 The [sc. fibre optic] cables can transfer a light signal for huge distances which is why they are so important in communications technology. < as lemmas |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。