水密度

So you think that by staying at home you are safe from all the terrible kinds of pollution present outdoors, such as in or near factories, roads, and garbage dumps? Do you think that by staying in you

发表于:2018-11-27 / 阅读(588) / 评论(0) 分类 赖世雄高级美国英语

THE PROPERTIES OF WATER Earth is an ocean planet. About three billion years ago, life on our planet began in the deep blue seas. Ninety-nine percent of the living space on earth is in the oceans. Marine life is incredibly rich and varied. There are

发表于:2018-12-04 / 阅读(80) / 评论(0) 分类 人教高中英语高二

浮游生物粪渣助科学家预测气候变化 Scientists trying to predict future changes in our climate are using every possible source of data to make their calculations. Lately, they have learned that one of the most sensitive instruments could

发表于:2018-12-19 / 阅读(56) / 评论(0) 分类 VOA双语新闻 2015年10月

Water contamination has caught increasing attention among the Chinese public. Some have gone so far as to challenge local environmental officials to swim in a polluted river. Ma Jun has been an active environmentalist for more than 10 years. About ha

发表于:2018-12-19 / 阅读(61) / 评论(0) 分类 英闻天下

NATURE'S NURSERY: ESTUARIES As the oceans are the source of life on earth, the estuaries are our planet's nurseries. An estuary is the body of water where a river meets the ocean. Salt water from the ocean and fresh water from the river mix together

发表于:2018-12-29 / 阅读(139) / 评论(0) 分类 人教高中英语高二

(woman) To us, the environment in which fish dwell often seems cold, dark, and mysterious. But there are advantages to living in water, and they have played an important role in making fish what they are. One is that water isn't subject to sudden te

发表于:2018-12-30 / 阅读(137) / 评论(0) 分类 托福听力短文

Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t

发表于:2019-01-02 / 阅读(119) / 评论(0) 分类 火星生命

The Properties Of Water Earth is an ocean planet.About three billion years ago,life on our planet began in the deep blue seas.Ninety-nine percent of the living space on earth is in the oceans.Marine life is incredibly rich and varied. There

发表于:2019-01-09 / 阅读(248) / 评论(0) 分类 高中英语听力人教版第二册

Natures Nursery: Estuaries As the oceans are the source of life on earth, the estuaries are our planets nurseries. An estuary is the body of water where a river meets the ocean. Salt water from the ocean and fresh water from the river mix together in

发表于:2019-01-09 / 阅读(283) / 评论(0) 分类 高中英语听力人教版第二册

海洋雪有助预测气候变化 As if materializing from a different dimension, the submersible device called PELAGRA slips below the surface and sinks into a research pool at the National Oceanography Centre, in Southampton, England. 位于英格兰

发表于:2019-01-14 / 阅读(103) / 评论(0) 分类 VOA标准英语2016年(一月)

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(73) / 评论(0) 分类 自然百科2010年

It's just magic. When you follow it, you can see that this is the perfect union of the tree and the villages. The locals have kind of trained the roots, kind of guided them through and netted them together. What they've done here is they've grabbed s

发表于:2019-01-22 / 阅读(92) / 评论(0) 分类 自然百科2010年

Water contamination has caught increasing attention among the Chinese public. Some have gone so far as to challenge local environmental officials to swim in a polluted river. Ma Jun has been an active environmentalist for more than 10 years. About ha

发表于:2019-02-14 / 阅读(72) / 评论(0) 分类 英闻天下

You're right, professor, he told me after a few moments of silence. This is a separate world. 您说得对,教授,他静默一刻后对我说,它是另一个世界,它跟陆地不相干, It's as alien to the earth as the planets accompanyin

发表于:2019-02-17 / 阅读(52) / 评论(0) 分类 《海底两万里》中英双语有声读物

Oil and Water To understand the emulsifying process, we must first accept the scientific principle that oil and water do not naturally mix. Quite literally, they find each other's presence repulsive. A good illustration of this aversion is homemade o

发表于:2019-02-17 / 阅读(68) / 评论(0) 分类 双语有声阅读

Over the past six months, I've spent my time traveling. I think I've done 60,000 miles, but without leaving my desk. And the reason I can do that is because I'm actually two people. I look like one person but I'm two people. I'm Eddie who is here, an

发表于:2019-02-21 / 阅读(94) / 评论(0) 分类 英语语言学习

US Scientists working on new ways to battle the erosion that threatens Louisiana's coastline have a dramatic new tool: a massive replica of the lower Mississippi River. The multi-million US dollar model, complete with flowing water, aims to isolate t

发表于:2019-02-22 / 阅读(118) / 评论(0) 分类 2018CRI中国国际广播电台

The Nautilus is made up of two hulls, one inside the other; between them, joining them together, are iron T-bars that give this ship the utmost rigidity. 诺第留斯号由双层船壳造成, 一层是内壳,另一层是外壳,两壳之间,用许

发表于:2019-02-25 / 阅读(102) / 评论(0) 分类 《海底两万里》中英双语有声读物

What's more, I've detected those falling and rising currents that make up the ocean's true breathing. 此外,我又注意过那些由上而下和由下而上的水流,形成真正的海洋呼吸作用。 I've seen a molecule of salt water heat up

发表于:2019-02-25 / 阅读(78) / 评论(0) 分类 《海底两万里》中英双语有声读物

Oceans are the real powerhouse of the planet's surface behavior. 海洋是地球表面活动的真正动力源泉。 Indeed, meteorologists increasingly treat oceans and atmosphere as a single system, which is why we must give them a little of our at

发表于:2019-02-25 / 阅读(89) / 评论(0) 分类 万物简史
学英语单词
adreno-glomerulotropin
adversive seizure
aerial cable way
air-swallowing
almost antagonistic game
Angermanland
antisite defect
Asiatic plantain seed
backwater silting
Bacterium typhi-abdominalis
Balsalazine
bivotine
blockade and embarge
breaking out
Brionnais
built-in edges
buryingplaces
cabinet-rank
carbide-tipped drill
cheiracanthium
circular softening machine
climbing boots
conceptual model
consensing
construction standards
cooper hewitt lamp
counter rotating motor
crib and pile dike
dispossess for
distributed parameter problem
double-arm interferometer
drift scratch
Endocorion
equilibrium figure
extraordinarily
familial immunity
faulkes
finched
flight-time limitation
forgenin
frame advance
fright due to decicincy of qi
goaf filling
Goldilocks principle
gowbarrow
gripe one's ass
Hamiltonism
Harpy
hyperammonaemias
infinity scarves
kitchenwares
ledger board
linear theory
lower case character
manufacturing lead time
matija
mess locker
metal thick nitride semiconductor (mtns)
meteoric effect
mine construction geolo-gy
mini-scanning method
mnlaminated cortex
moving element
Nectem
not all there
off one's chop
overprimed
panax
peptidergic neurons
phenolphthalein yellow
political nature
pretask
priestman
protection pie
Px.
Qulūd
racial stereotype
Rad-stockian
radus
raise a disturbance
Raphidophora
reaumuril kaschgarica rupr.
Schmidt process(for hydrogen and oxygen)
self observation
Setsuko
shooting pains
single-functions
sloop of war
solid phase peptide synthesis
Solyman I
sourthwester
strong-coupling superconductor
superconnection
swainishness
technical appraisement
thladiantha henryi hemsl.
thread blights
Tigui
toolface orientation
trinketizing
turbulent plasma
vanadium(iv) oxychloride