裂隙水压力

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(85) / 评论(0) 分类 火星生命

Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. U

发表于:2018-12-15 / 阅读(222) / 评论(0) 分类 新东方背诵文选

BARBARA KLEIN: This is SCIENCE IN THE NEWS, in VOA Special English. Im Barbara Klein. BOB DOUGHTY: And Im Bob Doughty. Today we remember Hurricane Katrina and tell about the science of severe ocean storms. (MUSIC) BARBARA KLEIN: Many Americans are ob

发表于:2018-12-15 / 阅读(65) / 评论(0) 分类 2010年VOA慢速英语(八)月

旱灾的成因与影响 Its signs are subtle and slow: the earth dries; water levels fall; the rains do not come; and the land is gripped by drought. At its most basic, a drought occurs when more water is used than isreplenished. It is a balance bet

发表于:2018-12-26 / 阅读(108) / 评论(0) 分类 自然百科2016年

The air thins and they begin to lose the protective weight of the miles of air above them. The pressure is dropping, when you finally get to the stratosphere, and to the altitude we like to work at, it's only one one hundredth that of it's on the gro

发表于:2018-12-27 / 阅读(79) / 评论(0) 分类 探索与发现2014年

SCIENCE IN THE NEWS - Severe Ocean Storms: Behind Nature's Power By Caty Weaver Broadcast: Tuesday, September 27, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob D

发表于:2019-01-02 / 阅读(70) / 评论(0) 分类 科技之光

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-01-08 / 阅读(77) / 评论(0) 分类 英语小短文

U.S. officials say a cap on a damaged oil well in the Gulf of Mexico appears to have a small leak, but they say there are no plans to remove the cap from the well. Engineers are carefully studying the well for any evidence of problems. Engineers spot

发表于:2019-01-13 / 阅读(81) / 评论(0) 分类 VOA标准英语2010年(七)月

The lava, unleashed, transforms the earth. Along its way from comb to sea, it is a force of change, leaving in its wake a course of destruction and creation. The volcano sculpts a surreal moonscape. Huge rocks ferry on the backs of flows, tower over

发表于:2019-01-22 / 阅读(90) / 评论(0) 分类 自然百科2009年

Kelly Moore and her friends went to the beach. Kelly did not know how to swim. All her friends were having fun in the water. Come in! they kept shouting. Stop being a chicken! she heard them say. Kelly hated being teased. She finally decided to jump

发表于:2019-01-24 / 阅读(69) / 评论(0) 分类 英语第4级听力-English Level 4

Without my noticing it? 我怎么一点都不觉得? Without your noticing it. And if you aren't crushed by so much pressure, it's because the air penetrates the interior of your body with equal pressure. 您一点不觉得。您所以不被这样大

发表于:2019-01-28 / 阅读(83) / 评论(0) 分类 《海底两万里》中英双语有声读物

Note well, my fine Canadian, I went on, if such an animal exists, if it lives deep in the ocean, 请您注意,我又说,我的诚实的加拿大人,如果有这样的一种动物,如果它是生活在海洋底下, if it frequents the liquid

发表于:2019-01-28 / 阅读(68) / 评论(0) 分类 《海底两万里》中英双语有声读物

There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th

发表于:2019-02-07 / 阅读(148) / 评论(0) 分类 英国学生科学读本

【英文原文】 If I were to stop drinking water right now, how long could I live? There are several different factors involved here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person c

发表于:2019-02-16 / 阅读(72) / 评论(0) 分类 英语听力广播—Listening

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-02-17 / 阅读(67) / 评论(0) 分类 双语有声阅读

In 1993, water aerobics was only for senior citizens or patients in rehab. Nowadays, it encompasses a variety of trendy underwater sports, all of which are healthy. The body has 90 percent support when under water. That means the joints only have to

发表于:2019-02-23 / 阅读(80) / 评论(0) 分类 英语时差8,16

Fine, captain, but now we come to a genuine difficulty. You're able to lie flush with the surface of the ocean, that I understand. 对,船长,可是这里有实际的困难。这样,您可以使船面跟洋面一致,我可以理解。 But low

发表于:2019-02-25 / 阅读(77) / 评论(0) 分类 《海底两万里》中英双语有声读物

These algae are a genuine prodigy of creation, one of the wonders of world flora. 这些海藻类实在是造化的奇迹,宇宙植物界的一个奇迹。 This family produces both the biggest and smallest vegetables in the world. 地球上最小和

发表于:2019-02-25 / 阅读(73) / 评论(0) 分类 《海底两万里》中英双语有声读物

These are the normal navigational instruments, I replied, and I'm familiar with their uses. 这些是航海家常用的仪器,我答,我知道它们的用法。我现在看见的这个表盘,上面有能转动的针,那不是流体压力计吗?

发表于:2019-02-25 / 阅读(152) / 评论(0) 分类 《海底两万里》中英双语有声读物

Because the greatest necessity for so doing would seem to be, when in feeding he accidentally takes in water. 因为,它之所以要这样排水,最大的原因倒似乎是因为它在吃东西的时候,偶然吸进了水的缘故。 But the Sp

发表于:2019-02-25 / 阅读(74) / 评论(0) 分类 白鲸记
学英语单词
accounting for estate income
active recall
adenylyl transferase
advertiser-friendly
aircraft plywood
allowable working stresses of steel
alpha two
alveolus dentalis
Amylbarb
anti-Muslim
astronaut's energy metabolism
asymptotic latitude
behavio(u)ral neuroscience
big-cats
black water estuary
bootboy
boundary resistance
Brioude
butylene sulfide
calumnies
carelessness
cast iron vessel
christmas vacation
coke dicks
crown wheel
cuchifritos
cyperus imbricatus imbricatus
dead man's handle
deperdits
diadochokinesia
diminished thirds
discone dipole
displicency
Eddelak
falf-power point
finite population correction
force conditions
got the point
Heliotropium micranthum
henshall
injection casting
jump face
leading rollers
low-tar
lymphoglandulae hypogastricae
malaves
map edit
Mary, Queen of Scots
measurement of olfaction
microinterlocking
milli-q
more useful
MVP,M.V.P.
mydocalm
myomalacia
navigate home
navios
Nikon choir
oil mist separator
overcontributes
paleontologic species
paper birch
pathological chemistry
pompernickel
praemunire facias
propellant tank volumetric efficiency
S.S.W.
sa'da
self-sacrificing
set purpose
sick-list
single-mode oscillator
skeletal electron theory
skim jointer
sleep-wakest
slide prevention
slinked
snakeology
soil pencil
sound attenuation factor
Sporobolomycetales
ST_including-and-excluding_enclosing-surrounding-and-immersing
stashable
statistical mass
strip footing
t bone
tanning liquors
terpsiphone atrocaudate
testing socket
therapeutic test
three phase current motor
time transgressive (diachronous)
to kiss off
towze
treuant
tungsten bur
two-speed gear
vaginal smear examination
variants-of
vertically-integrated
Yotvingian
zektzerite