| 单词 | visible light |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔bioluminescence〕Emission of visible light by living organisms such as the firefly and various fish, fungi, and bacteria.生物发光：生物体的可见光发射，如萤火虫、彩色鱼类、真菌类和细菌美国传统〔black light〕Invisible ultraviolet or infrared radiation. Black light causes fluorescent materials to emit visible light and is used to take pictures in the dark.黑光：看不见的紫外线或红外线。黑光使荧光物体发出可见光，用于黑暗中拍照美国传统〔dispersion〕Separation of visible light into colors by refraction or diffraction.色散：可见光通过折射或衍射而分散成多种颜色美国传统〔electron optics〕The science of the control of electron motion by electron lenses in systems or under conditions analogous to those involving or affecting visible light.电子光学：利用电子透镜控制电子活动的科学，用于类似涉及或影响可见光的系统内或条件下美国传统〔emission nebula〕A nebula that absorbs ultraviolet radiation from stars and reemits it as visible light.发射星云：吸收星体的紫外线辐射并且转变成可见光放射出来的星云美国传统〔incandescence〕The emission of visible light by a hot object.白热光：物体遇热发出可见光美国传统〔incandescent〕Emitting visible light as a result of being heated.发白热光的：由于遇热而发出可见光的美国传统〔luminous flux〕The rate of flow of light per unit of time, especially the flux of visible light expressed in lumens.光通量：单位时间内光通量的比例，尤其是以流明表示的可见光的通量美国传统〔mercury-vapor lamp〕A lamp in which ultraviolet and yellowish-green to blue visible light is produced by an electric discharge through mercury vapor.汞气灯：通过给水银蒸汽通电而产生淡紫色、黄绿色至蓝色可见光的灯盏美国传统〔photoelectric effect〕Ejection of electrons from a substance by incident electromagnetic radiation, especially by visible light.光电效应，光电现象：由附带的电磁辐射引起的一种物质的电子散射，尤指可见光美国传统〔spectrum〕Beyond the red end of the visible light spectrum is infrared.在可见光谱红色一端之外是红外线。牛津搭配〔sun〕The radiant energy, especially heat and visible light, emitted by the sun; sunshine.日光：太阳放射出来的辐射能，尤指热和可见光；阳光美国传统〔surface〕Visible light from the sun passes through the atmosphere to the Earth's surface.太阳发出的可见光穿过大气层照到地球表面。牛津搭配〔telescope〕An arrangement of lenses or mirrors or both that gathers visible light, permitting direct observation or photographic recording of distant objects.望远镜：采集可见光、能对远距离物体直接观察或照相记录的透镜、镜片或两者都有的装置美国传统〔transparent〕Permeable to electromagnetic radiation of specified frequencies, as to visible light or radio waves.可透过的：可以让某些频率的电磁辐射通过的，如可见光或无线电波美国传统〔up-conversion〕A laser beam can be used to up-convert infrared light to visible light.激光束可以用来使红外线向上变频成为可见光。21世纪英汉Nowadays, smokescreens need to block not only visible light but also the infra-red sights that soldiers use to spot targets.现在,烟幕不仅需要能够遮挡可见光,还要求能挡住士兵用来发现目标的红外线。剑桥国际 |
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