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(355) / 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(271) / 评论(0) 分类 万花筒2013年
学英语单词
ADAPS
adder gate
Adrianople, Battle of
alizarol brown
angle of gradient
Arber's law
atmospheric pollution source
atomic navy
augmentation ideal
Augustal
available nutrient of fertilizer
avenida
bandishing
Bdellostoma
be envious of
Berry-au-Bac
busy hour calls
camapho
cardistry
Chinese jade
clear as daylight
computation of heat balance
computer vision system
control distribution center
corporate court
corundum mullite ceramic
cost-value of the growingstock of a single wood
data acquisition stage
dauerblastula
delta-marginal plain
Dermateaceae
diisopropyl paraoxon
dioctophyme renale
distendable
double channel
double stage digester
double tetrahedron
Euroskeptic
federal withholding tax
finegan
food microbiology
formcoke from hot briquetting
fortutous
fried sliced chicken and chicken liver
g-excess illusion
game ball
golschmann
herpes varicella zosters
Keystone Kops
knuckler
korpimaki
leading company
leiser
leukocyte inhibitory factor
linear order
long term lease contract
main-yard
miserabilisms
mount carstensz
network switching center
New Christian
nocti-
non-repetitive
nonalignments
Novgorodskiy Rayon
oficere
ojibwa
one's hand is out
order anopluras
pars optica hypothalami
paste box
pelagosite
pentamethylenetetrazol
polypyrroles
ProSom
radiographic source
red-giant
salvarsan rash
scabby leprosy
scientific education
sheet thickness gauge
simple parameter
spondyloepimetaphyseal dysplasia
stability of community
stolon
stragety
symmetrical triangles
temper mill
test pilot training
tongue shell
Torres Strait Creole
torsion ring shear apparatus
TP (turbopump)
tralee
transistor relay circuit
tsurugi
unciae
value of expectation
viscoelasticity
wafer probe
waif-like
Walis I.