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:

radii    
n.
pl. 半径

半径

Radii \Ra"di*i\ (r[=a]"d[i^]*[imac]), n.,
pl. of {Radius}.
[1913 Webster]


Radius \Ra"di*us\ (r[=a]"d[i^]*[u^]s), n.; pl. L. {Radii}
(r[=a]"d[i^]*[imac]); E. {Radiuses}
(r[=a]"d[i^]*[u^]s*[e^]z). [L., a staff, rod, spoke of a
wheel, radius, ray. See {Ray} a divergent line.]
1. (Geom.) A right line drawn or extending from the center of
a circle to the periphery; the semidiameter of a circle or
sphere.
[1913 Webster]

2. (Anat.) The preaxial bone of the forearm, or brachium,
corresponding to the tibia of the hind limb. See Illust.
of {Artiodactyla}.
[1913 Webster]

Note: The radius is on the same side of the limb as the
thumb, or pollex, and in man it is so articulated that
its lower end is capable of partial rotation about the
ulna.
[1913 Webster]

3. (Bot.) A ray, or outer floret, of the capitulum of such
plants as the sunflower and the daisy. See {Ray}, 2.
[1913 Webster]

4. pl. (Zool.)
(a) The barbs of a perfect feather.
(b) Radiating organs, or color-markings, of the radiates.
[1913 Webster]

5. The movable limb of a sextant or other angular instrument.
--Knight.
[1913 Webster]

{Radius bar} (Mach.), a bar pivoted at one end, about which
it swings, and having its other end attached to a piece
which it causes to move in a circular arc.

{Radius of curvature}. See under {Curvature}.
[1913 Webster]


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


  • UNESCO : Building Peace through Education, Science and Culture . . .
    UNESCO is the United Nations organization that promotes cooperation in education, science, culture and communication to foster peace worldwide
  • UNESCO World Heritage Centre - World Heritage List
    In 1980, this property was extended to include the cultural and historical area, and cultural criteria (i) (iii) (iv) were added Extension of the "Australian East Coast Temperate and Subtropical Rainforest Park" Renomination of "Uluru-Kata Tjuta National Park" under cultural criteria
  • Home | UNESCO
    Lifelong learning is key to overcoming global challenges and to achieving the Sustainable Development Goals The first virtual immersive reality museum of stolen cultural objects at a global scale
  • Home - UNESCO Digital Library
    We use cookies on this site to enhance your user experience For more information on how we use cookies, read our privacy notice
  • UNESCO - Wikipedia
    The United Nations Educational, Scientific and Cultural Organization (UNESCO juːˈnɛskoʊ ) [2][a] is a specialized agency of the United Nations (UN) with the aim of promoting world peace and security through international cooperation in education, arts, sciences and culture [3][4] It has 194 member states and 12 associate members, [5] as well
  • Welcome to UNESCO Core Data Portal
    This portal provides information and reports about the work done by UNESCO The data provided on this website is for general information purposes only and is updated quarterly
  • Datahub UNESCO - Data, API, Datasets, Database — UNESCO DataHub
    Access interactive datasets, statistics, visualizations, and indicators to support evidence-based policymaking and sustainable development goals
  • Education, Science and Culture | United Nations
    The United Nations Educational, Scientific and Cultural Organization focuses on everything from teacher training to helping improve education worldwide to protecting important historical and
  • UNESCO - United Nations Educational, Scientific and Cultural . . .
    "The United Nations Educational, Scientific and Cultural Organization (UNESCO) (In French: Organisation des Nations unies pour l'éducation, la science et la culture) is a specialized agency of the United Nations (UN) based in Paris Its declared purpose is to contribute to peace and security by promoting international collaboration through educational, scientific, and cultural reforms in
  • Member States and Country profiles | UNESCO
    The UNESCO National Commissions are national cooperating bodies set up by the Member States for the purpose of associating their governmental and non-governmental bodies with the work of the Organization





中文字典-英文字典  2005-2009