水压变动率

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(134) / 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(262) / 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(107) / 评论(0) 分类 2010年VOA慢速英语(八)月

The best value for money in cooking equipment, in my mind, is first a digital scale and digital thermometer. Theyre both about $20. They help you cook so much more accurately that theyre both enormously valuable. Nathan Myhrvold is the former chief t

发表于:2018-12-24 / 阅读(117) / 评论(0) 分类 Scientific American(二)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(142) / 评论(0) 分类 自然百科2016年

Cake Mixes And High Altitude Directions Look on the side of a cake mix box and you might find special directions for baking the cake at high altitudes. Why do bakers gave to adjust their cake ingredients when they live at higher elevations? Because a

发表于:2018-12-27 / 阅读(96) / 评论(0) 分类 英语时差8,16

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(122) / 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(106) / 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(129) / 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(126) / 评论(0) 分类 VOA标准英语2010年(七)月

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(125) / 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(129) / 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(120) / 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(187) / 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(114) / 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(108) / 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(130) / 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(115) / 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(120) / 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(196) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
abolishments
age-specific
Alverca
bacteroidosis
biologically hard detergent
blindfold board
Bureau of Justice Assistance
calibration maker
cardinal axis
condenser relief valve
cornwalli
crotarbital
cryscope
delal
Denham Sd.
deprivation of political rights
dibromopropane
diode function generator
drive side of tooth
dry-plate rectifier
edipus
electro cardiograph (ecg)
enable shortcut keys
equal-zero indicator
esmayle
expressive riot
factory system industry
free piston pump
gage-side of rails
Garnwerd
gyroscopic flowmeter
ha-ha-ha
high impact polystyrene(HIPS)
hydroxyl-iron
ileocecal tumor
immunosuppressive virus
installation operation
Intensity Red Green Blue
intersubstituting
Jonestowns
knew someone
Lentini, Fosso di
Ligularia lamarum
lionets
Liplaster
lotus throne
malvaceous
management ethics
manjra r.
manual punch
microinfauna
nanosomia micromelica
nelvana
neutron flux distribution measurement
non-deliverable item
normal butane
notch sensibility
overornamenting
Palm's theorem
parafoveal vision
parts and components
pedatisect
petrol motor car
Phylloglossum
plate race
power supply equipment
powerful drug
primary mirror cell
proventricles
Putnam Hall
recontaminated
remove the fangs of
replows
riser sleeve
rorippa austriaca
safe areas
safe water marks
sales demonstrator
sanitary legislation
scattered absorption coefficient
scrogged
seasonal disease
semi rigid connection
seristan
shore bugs
skux
spermatogenic tissue
starter tile
straight bonds
studio audience
sworde
tirewomen
travel(l)ing head shaper
tschowkinite (chevkinite)
turbopump power density
under milk wood
utility package
vacuum head
Villastar
weeping
Yanam