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:


  • Radiation: Ultraviolet (UV) radiation
    Solar emissions include visible light, heat and ultraviolet (UV) radiation Just as visible light consists of different colours that become apparent in a rainbow, the UV radiation spectrum is divided into three regions called UVA, UVB and UVC
  • 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
  • Raising awareness on ultraviolet radiation - World Health Organization . . .
    Raising awareness on ultraviolet radiation Small amounts of ultraviolet (UV) radiation are essential to produce vitamin D in people, yet overexposure to sunlight may result in acute and chronic health effects on the skin, eye and immune system
  • 紫外线辐射 - World Health Organization (WHO)
    zi3wai4xian4fu3she4 重要事实 皮肤癌主要由暴露于紫外线辐射所致。紫外线辐射来自太阳或日光浴床等人造日光源。 2020年，全球共检出150多万例皮肤癌，并报告了12万例以上皮肤癌死亡。 据估计，全世界共有1800万人因白内障而失明，其中约10%可能是因暴露于紫外线辐射。 儿童和青少年暴晒会导致今后
  • Rayonnement ultraviolet - World Health Organization (WHO)
    Le rayonnement ultraviolet (UV) ne peut être ni vu ni ressenti Alors que certaines personnes sont exposées à des sources artificielles de rayonnement UV (par exemple en médecine, dans l’industrie et à des fins de désinfection et cosmétiques), tout le monde est exposé aux rayons UV solaires
  • Radiation: The known health effects of ultraviolet radiation
    UV radiation can cause short- and long-term health effects on the skin In addition to the well-known short-term effects such as sunburn or allergic reactions, long-term effects like skin cancer represent a chronic health risk Skin cancer risk is strongly correlated with the duration and frequency of sun exposure over one’s lifetime Cumulative UV dose is related to the development of
  • 辐射：紫外线辐射对健康的已知影响
    紫外线UV-B引发的唯一好处是刺激产生维生素D。维生素D对于增加食物中钙和磷的吸收十分重要，并在骨骼发育、免疫功能和血细胞形成中起着至关重要的作用。因此，紫外线照射的这种好处必须与同时对眼睛和皮肤的不良健康影响相权衡。 根据目前掌握的科学知识，健康人露出面部、手部和手臂
  • Rayonnement ultraviolet - World Health Organization (WHO)
    Qu’est-ce que le rayonnement ultraviolet ? Dans notre environnement, le soleil est de loin la source de rayonnement ultraviolet la plus importante Le soleil émet de la lumière, de la chaleur et des rayons ultraviolets (UV)
  • Les effets connus des UV sur la santé
    Les UV peuvent avoir des effets à court et à long terme sur la peau En plus des effets à court terme bien connus, tels que les coups de soleil ou les réactions allergiques, les effets à long terme comme le cancer de la peau représentent un risque chronique pour la santé Le risque de cancer de la peau est fortement corrélé à la durée et à la fréquence de l’exposition au soleil
  • Ultraviolet (UV) radiation - World Health Organization (WHO)
    One in every three cancers diagnosed is a skin cancer The main factor that predisposes to the development of skin cancer is exposure to ultraviolet (UV) radiation, traditionally from the sun and more recently from artificial tanning sunbeds Both solar radiation and sunbeds are classified as carcinogenic to humans by the WHO International Agency for Research on Cancer (IARC) Small amounts of





中文字典-英文字典  2005-2009