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(161) / 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(140) / 评论(0) 分类 万花筒2013年
学英语单词
Abelmoschus esculentus Moench.
adsorption chart
alubond method
ancillary cooler
antherigona (acritochaeta) biseta
Appel equation
arabescato
Asaph.
attritee
autodecompositions
bearing plummer block unit
blood-lettings
bornan
call control phase
case-harden
chloro-acetyl chloride
coastal zone development
cocobean
coefficient of linear extensibility
compartmentalisation
cone neck rivet
coordinate boring machine
corynebacterium rathayi (e.f.smith) dawson
damaged packing
diethyl carbinol
discounted benefit
distribution media
dyingest
early morel
egg's external fertilization
emulsifiable concentrate containing
erinaceus europeaeuss
extraados
film processing apparatus
finish decatizing
free lever locking machine
fuca
Georgian wired glass
h(a)emagglutinin
hambitzer
hard anodizing
homeland-defense
hydroa
improcreance
K13176
kaempferide
Kiambi
leisey
marine environmental impact statement
metallo-organic complex
multibucket
necrophagous mites
nitric acid scrubbing
noisy environment
nonlegacy
octagon bolt
ommatius aequalis
outsaving
outside firebox side sheet
palatoethmoidal suture
parasitic disease
parenteral administration
parfitts
pavine
petryna
pigger
polycythemia
polyester base
porous bushing
pqpm (project quality program manual)
pratt's theory of isostasy
private trust
pseudolymphoma syndrome
re-cost
ready made
relay switchboard
rhombifolia
right of self-preservation
Riho
roast-reduction process
rotation
seat-of-the-pants
single-slag process
sleepy heads
socket power
southwestern United States
state leaders
teinochemistry
thermal injury
threephase smelting furnace
tide waiter
toxic nystagmus
truncus sympathicus
Twaddell hydrometer
undeniability
undercapitalisation
unitized carrier-type axle housing
vampire power
velocity of convergence
vertical cycle
washbins
weighing hopper