英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

ultraviolet    音标拼音: [,ʌltrəv'ɑɪəlɪt]
a. 紫外线的

紫外线的

ultraviolet
紫外线 UV

ultraviolet
紫外线

ultraviolet
adj 1: having or employing wavelengths shorter than light but
longer than X-rays; lying outside the visible spectrum at
its violet end; "ultraviolet radiation"; "an ultraviolet
lamp"
n 1: radiation lying in the ultraviolet range; wave lengths
shorter than light but longer than X rays [synonym:
{ultraviolet}, {ultraviolet radiation}, {ultraviolet
light}, {ultraviolet illumination}, {UV}]

Ultraviolet \Ul`tra*vi"o*let\, a. [Pref. ultra- violet.]
(Physics)
Lying outside the visible spectrum at its blue-violet end; --
said of light more refrangible (i. e. having a shorter
wavelength) than the extreme violet rays of the visible
spectrum. Electromagnetic radiation with wavelengths shorter
than those of ultrviolet light are not usually considered as
light waves, but are classified differently. The ultraviolet
region of the electromagnetic spectrum is generally
considered as comprising those electromagnetic emissions with
wavelengths lying between those of visible light and those of
X-rays, i. e. between 4000 Angstroms and 100 Angstroms.
[1913 Webster PJC]


请选择你想看的字典辞典：
单词字典翻译
ultraviolet查看　ultraviolet　在百度字典中的解释百度英翻中〔查看〕
ultraviolet查看　ultraviolet　在Google字典中的解释Google英翻中〔查看〕
ultraviolet查看　ultraviolet　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Ultraviolet - Wikipedia
    Ultraviolet radiation (UV; sometimes called ultraviolet light) is electromagnetic radiation of wavelengths of 100–400 nanometers, shorter than that of visible light, but longer than X-rays
  • Ultraviolet radiation | Definition, Examples, Effects, Wavelengths . . .
    Ultraviolet radiation is the portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region
  • UV Index Today Hourly UV Forecast | Local Sun Safety
    Check the accurate UV index today and hourly UV forecast for your location Protect your skin with real-time, local ultraviolet radiation tracking
  • Ultraviolet Light or UV Radiation - Science Notes and Projects
    Ultraviolet light or UV is electromagnetic radiation in the wavelength range of 10 to 400 nanometers (nm), which is between x-rays and visible light Because it is largely invisible to humans, another name for UV is black light
  • Ultraviolet Radiation | Radiation and Your Health | CDC
    Ultraviolet (UV) radiation is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds While it has some benefits for people, including the creation of Vitamin D, it also can cause health risks
  • Ultraviolet Radiation: How It Affects Life on Earth
    The article describes some effects on human health, aquatic ecosystems, agricultural plants and other living things, and explains how much ultraviolet radiation we are currently getting and how we measure it
  • Current UV Index and Hourly Forecast
    CurrentUVIndex com is your trusted companion in helping you stay informed and protected against harmful ultraviolet (UV) radiation from the sun We offer real-time UV index data and a 5-day hourly UV index forecast for over 30,000 cities across the United States
  • Ultraviolet radiation - World Health Organization (WHO)
    Ultraviolet (UV) radiation covers the wavelength range of 100–400 nm, which is a higher frequency and lower wavelength than visible light UV radiation comes naturally from the sun, but it can also be created by artificial sources used in industry, commerce and recreation
  • UV Index Overview - US EPA
    The UV Index predicts the ultraviolet radiation levels on a 1-11+ scale and provides a daily forecast of the expected intensity of UV radiation from the sun
  • International Ultraviolet Association Inc - What is UV? - IUVA
    Ultraviolet light is that portion of the electromagnetic spectrum that lies beyond the “purple†edge of the visible spectrum and has wavelengths between 100 and 400 nm





中文字典-英文字典  2005-2009