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(125) / 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(103) / 评论(0) 分类 万花筒2013年
学英语单词
.sfr
a. poplitea
acid converter
AFC (automatic fuel control)
amino acyl adenylate
amount over withheld
Amto
Baïdou
bend out of shape
black-beer
block pool
carry it with a high hand
Channidae
chirita primuloides ohwi
cobaltic tetracyanide salt
consensual crimes
Cotoneaster multiflorus
crabcakes
cyclosilazane
daxes
decawatt
direct cross
doubletalk
elastic scattering electrons
empirical mean
fissiparous
flat-head screw
frithy
gamma pinch
gaseogenic anomaly
Glycoasparagine
ground test vehicle
hamamelises
hand brake adjusting bolt spring
haulage by train
homopolypeptide
india rubber cable
infringement of territorial sovereignty
initialization vector
inversion dip
ionized gas anemometer
isoxanthohumol
Kartal Tepesi
l-butyl-3-tolylsulfonylurea
lead diantimonate
lignum guaiaci
micromeria douglasiis
monkey face tree
mugilogobius fontinalis
Nantwich
nasa.gov
nashoba
national interests
New Criticism
non-prossed
nutritive organ
once through fuel
p-benzylaniline
panoramal
patronaged
pedigree classification
pep-pills
pharmacognosia
Phraortes
pitch lever
powdered metal parts
preparation symbol
pruinescence
psycho-analyst
pyramidella dolabrata terebellum
Quang Tri, Tinh
Rammstedt's operation
reascending
refutable formula
reservoir fluid
roll opening
Romiley
rotary rock drill
sejoined
sheepies
Somantin
south-easterlies
special handling considerations
speed overshoot
strike on the rocks.
stumer
subheadlines
synchronizing pulse separator
tappet for fuel injection pump
taylorians
tech-nomads
tetrarches
the tits
three-wire leveling
travelers' checks
two-channel radiometer
under blowing
Vaalplaas
Valle Hermosa, P.de
wasted costs order
well-wishing
yellow deal