音标:['reidiai] ;
pl. 半径
[医] 半径, 辐射线(解)
n the length of a line segment between the center and circumference of a circle or sphere
n a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
n a circular region whose area is indicated by the length of its radius
n the outer and slightly shorter of the two bones of the human forearm
n support consisting of a radial member of a wheel joining the hub to the rim

radii的用法和样例:

例句

用作名词(n.)
  1. A plane figure bounded by two radii and the included arc of a circle.由两个半径和两个半径中间的弧所形成的一个平面形状。
  2. It is now necessary to introduce a sign convention for radii of curvature.现在必须介绍曲率半径的正负号规则。

词汇搭配

  • radius半径范围
  • collum radii桡骨颈
  • optimum bend radii最佳河弯半径...
  • ratio of ionic radii离子半径比
  • capitulum radii桡骨小头

It sits a million miles away from the Earth 它位于距地球一百万里处的 at the Lagrangian point 拉格朗日点 where the gravitational pull from the Earth and the sun is equal. 此处地球和太阳的引力相等 Fixed in space it has an u

发表于:2018-12-07 / 阅读(117) / 评论(0) 分类 太阳科普

-Im Chris Kaufman and I here with Justin Kasper, who works at Smithsonian, hes an astrophysicist at the Smithsonian. And he's won a project thats gonna launch a probe at the sun, specifically the Solar Wind Electrons Alphas and Protons investigation,

发表于:2019-01-07 / 阅读(94) / 评论(0) 分类 万花筒2013年
学英语单词
-fu-
air-placed concrete
Al 'Ujaylāt
ankylodactylia, ankylodactyly
ayude
barge-carrying vessel
be detained
belt up
berid
bod veal
Bol'shoy Uzen'
both sewer system
bound oil
charter rolls
clearing house settlement sheet
Codrongiaos
coefficient module
common mullet
compostlike
contour survey
countise
Cragg
cross the wire
Ctenodrilidae
cytotaxonomists
d.sc
dielectric strength of oil
diriges
discomforted
dried goods
ecoconciousness
em quad
erythroblastosis neonatorum
eyzies
freight car technical condition han-ding-over post
fully integrated magnetic memory
gammacross
graphemic
hay-scented
high-jumper
hinge-rod
holh
horizontal arithmetic unit
Hullavington
illuminisms
intermediate draw gear
iodoquinoline
jeewoolall
justiczs
Khadki
kled
Korek
labdanolie acid
Lampridoidei
leadership effectiveness
lepra trophoneurotica
lily-flower
mechanism of continental rift originesis
miscellaneous detail status code
Miłoradz
multi-access channel
multimerised
multiple-stage rocket
Newark-on-Trent
nitrocarburized
Nordingrå
numeric pager
odd curve
oil field gas
passenger train technical servicing point
performance proof cycle
phosphorus pentachloride
plumb-joint
prominin
psub
radiosensitizers
relief measure
residual thermal electromotive force
rhabdomyosarcoma
Rolando's angle
rupestriss
saturation resistor
self sweating
selinatriene
simple groups of Lie type
single-slope drainage
sphaerulina
stonen
striction
Sun River
systematic uncertainty
Tonila
UNHQ
uretero-intestinal
valonias
wieland
winter plumage
wirier
woman haters
Wrisberg's ligament
XOF
yamashita