正三角形

regular triangle的用法和样例:

例句

  1. Each face is an equilateral triangle and three faces meet at each vertex.每一个面是正三角形并且于每一个顶点处有三个面相交。
  2. So the triangle distribution dimple jacket is feasible in structure.所以这两种排列型式的结构强度很相近,但蜂窝三角形排列的结构刚度更加好一些,推荐在薄膜蒸发器上采用正三角形蜂窝分布型式。

bizarre love triangle 演唱者:deep blue Bizarre Love Triangle Every time i think of you每次我一想到你 I feel shot right through with a bolt of blue 就仿如一个晴天霹雳击中我心房 It's no problem of mine but it's a problem I fin

发表于:2019-01-03 / 阅读(373) / 评论(0) 分类 中英翻唱歌曲

MARIO RITTER: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Mario Ritter. This week, music from banjo-playing singer Abigail Washburn. And we answer a timely question about a tragic fire one hundred years ago that changed working con

发表于:2019-01-11 / 阅读(532) / 评论(0) 分类 2011年VOA慢速英语(三)月

Lesson 138 Regular 1. You must have a regular diet. 2. She is a girl with a regular figure. 3. You are one of our regulars. 4. He has no regular work. 5. I will apply for the job through the regular channels. 6. This is an irregular mess. 7. I'm not

发表于:2019-01-14 / 阅读(367) / 评论(0) 分类 辛沛沛NO-BOOK 辛沛沛口语初级版

SARAH MCCAMMON, HOST: Today marks the anniversary of the deadliest industrial disaster in New York City history. In 1911, 146 garment workers - most of them immigrants - lost their lives in a fire at the Triangle Shirtwaist Factory. The fire devastat

发表于:2019-01-16 / 阅读(373) / 评论(0) 分类 2018年NPR美国国家公共电台3月

I think the part that Lauras talked about that it has the year 48 on it, and the size of this plan and some other things, I think we may have found the DC3 that disappeared in 1948.That is my real hunch. And I really don't see many other options for

发表于:2019-01-22 / 阅读(410) / 评论(0) 分类 自然百科2010年

It's very hard to tell. We've just hit the water. It's very hard to tell what altitude we're at. We've crashed the airplane at 930 feet. It seems clear that flying into that methane caused enough confusion in the instruments and with Thomas and he en

发表于:2019-01-22 / 阅读(408) / 评论(0) 分类 自然百科2010年

The couple use global-positioning coordinates to close in on the underwater wreck. We're about 3.6 miles away and its directly southeast from this location. A dark shape looms in the water. It's pretty close. It's easy to be fooled by clouds flying o

发表于:2019-01-22 / 阅读(361) / 评论(0) 分类 自然百科2010年

You don't have to move far up shore before the depths are tremendous and to be able to find an individual wreck in depths like that would be extremely difficult even with modern multibeam sonar technology, and certainly, incredibly difficult with a t

发表于:2019-01-22 / 阅读(384) / 评论(0) 分类 自然百科2010年

They looked for anything that may help identify the plane in the murky depths. You can see that may be 2,3 meters in front of you, yet at back, tremendous bottom motion of the water, if you dont hang on to something, it will move you really quickly.

发表于:2019-01-22 / 阅读(374) / 评论(0) 分类 自然百科2010年

Hurricanes may have helped build the myth. But writer John Quiza believes they cant explain all of the disappearances. Anything can disappear in foul weather, but for it qualify as a Triangle disappearance, it has to have the unexplainable quality to

发表于:2019-01-22 / 阅读(369) / 评论(0) 分类 自然百科2010年

The experiment proves that a rogue wave could have theoretically sunk the S.S.Poet. But Graber has spent 20 years studying this oceanic phenomenon. He knows there is no evidence to suggest that rouge waves occur more often in the Triangle than any ot

发表于:2019-01-22 / 阅读(407) / 评论(0) 分类 自然百科2010年

Unfortunately, the two airplanes were extremely similar, and even up till nowadays, they are still flying these airplanes, and there were literally thousands of these airplanes made. Greg Littles hunch that this could be the ill-fated 1948 airliner m

发表于:2019-01-22 / 阅读(324) / 评论(0) 分类 自然百科2010年

There's no doubt that a stream of giant bubbles could theoretically have sunk the U.S.S.'Cyclops'. Whether the bubbles were there or not, that's not for us to say. But I'll leave that up to the oceanographers. But could methane gas also explain the d

发表于:2019-01-22 / 阅读(391) / 评论(0) 分类 自然百科2010年

In our world of scientific discovery, one mystery endures. The Hoodoo Sea, the Limbo of The Lost, some seeing mysterious forces at work, others the powers of sea and storm. We dive into the deep. It appears to be a large military plane. And unleash s

发表于:2019-01-22 / 阅读(368) / 评论(0) 分类 自然百科2010年

In 1945, five Avenger torpedo bombers left from Fort Lauderdaleon a training mission, and they flew off into oblivion. We'regoing to fly east. We're flying too far north. We think we're 225 miles east of base. Their names would go down in history as

发表于:2019-01-22 / 阅读(360) / 评论(0) 分类 自然百科2010年

Gerrallan needs to escape the fast-developing cloud in order to survive. The tunnel was rapidly getting stronger, and it was a little lower at ten thousand feet to the center of the tunnel so we aimed for that opening and started descending down at f

发表于:2019-01-22 / 阅读(384) / 评论(0) 分类 自然百科2010年

Pierce thinks this powerful charge can electrify clouds in the lower atmosphere and create this supposed electronic fog. As this additional energy comes into the storm activity, it ionizes the air wall and this generates, quote, the electronic fog. A

发表于:2019-01-22 / 阅读(427) / 评论(0) 分类 自然百科2010年

Its two passengers are conducting an investigation into what they call electronic fog, a vapor that they think causes disappearances within the Triangle. Pilot Bruce Gernon needs to land the aircraft as soon as possible. The plane touches down safely

发表于:2019-01-22 / 阅读(412) / 评论(0) 分类 自然百科2010年

Of course, we're always hopeful that we can find the Holy Grail of the Bermuda Triangle search which is 'Flight 19'. But, but any plane that we can locate is a jigsaw piece of the puzzle of the mystery of the Bermuda Triangle. Deep in the heart of th

发表于:2019-01-22 / 阅读(443) / 评论(0) 分类 自然百科2010年

Some believe that massive underwater landslides or earthquakes can violently release gas from a substance called methane hydrate trapped beneath the sea bed. As its escaping bubbles rise, they lower the density of the surrounding ocean. The ship drop

发表于:2019-01-22 / 阅读(361) / 评论(0) 分类 自然百科2010年
学英语单词
a passing acquaintance
a. hepatica propria
above mean sea level
air-hardening
amie
aney
antejentacular
arc-driven supersonic laser
auxiliary battery power supply
backlick
Banikol
batting gloves
beckman thermometers
belmore creek
bodily
body paint
boneless chicken
butlerish
Chrysozona
classification of property
counter-bids
cuspate bar
d'astrophysique
defucosylated
devisable
DFID
diheterabenzene
earshot
electrical network
electrocardiophone
electron flux density
FAMDOC
flexible job
flirtatiousness
forward-swept-wing fighter
foveolae retroanalis
fragmentation of storage
ganglines
great nebula
happel
herve
hood fastener
hosipital ship
hot cargo clause
Huygens' wavelet
hyperplane
i-preched
impoverisht
islanditoxin
ivermectins
kerato-
laggy
lead superoxide
libration of moon
MacGuffin, McGuffin
macro control statement
mewls
monocytosis
mr.right
navesink
NGTE
nonexperientially
Nosema cochinchinensis
offhandedness
onychium japonicum (thunb) kuntze
party-pooper
piedmont stair
Pillow Book
planed lumber
power house on river bank
pownage
preapproving
rabiophobia
rare-earth salt
rate and route operator
rope starter
Rosamit
Röjdåfors
Sagra
scattering property
scrub woman
seepage surface
sell out of
southern city
spatial correlation
split-site
stop mortise
stress-management
sweet Annies
syncretizing
synoptic method for weather forecasting
tank stabilizer
tauromisin
tip someone off
traffic separation scheme
truncate distribution
upper-air sounding rocket
valeroes
warty eczema
wilpf
withholding statement