压力面;推进面

40 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 ni

发表于:2018-11-28 / 阅读(316) / 评论(0) 分类 新概念优美背诵短文50篇

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(94) / 评论(0) 分类 火星生命

ork Pressure Work pressure refers to the compelling force or influence that comes from one's work. Nowadays with the competition in the work field becoming more and more fierce (激烈), work pressure has become a serious problem for every person. It

发表于:2018-12-12 / 阅读(119) / 评论(0) 分类 英语四级作文范文

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(224) / 评论(0) 分类 新东方背诵文选

When you spill a liquid on the ground, it splashes. But if youre a guy using a urinal, or, more important, if the liquid is dangerous, say, an infected blood sample, you want to limit splashing. In other words: If an accident happens, you want the dr

发表于:2018-12-24 / 阅读(74) / 评论(0) 分类 2016年Scientific American(十二)月

Under Pressure压力之下 In physics, pressure depends on the amount of force acting on a surface and on the size of the surface. The smaller the surface, the greater the pressure. Lets say that a woman steps on your toe; she weighs 120 pounds. If s

发表于:2018-12-28 / 阅读(111) / 评论(0) 分类 初学者听力文摘精选

High Inflation Fairs, carnivals, festivals or anywhere you can buy helium-filled balloons, youre sure to see at least one balloon rising into the sky after someone accidentally lets it go off. What happens to the balloon after it rises out of sight?

发表于:2018-12-31 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest

Why do golf balls have dimples(酒窝, 涟漪)?So that they look cute? NO! Because the dimples maximize the distance golf balls travel. Dimpled balls travel up to four times farther than smooth-surfac

发表于:2019-01-07 / 阅读(162) / 评论(0) 分类 奥运英语

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(81) / 评论(0) 分类 英语小短文

HEALTH REPORT - Blood Pressure Drugs May Prevent Dry Eye Syndrome By Jerilyn Watson Broadcast: Wednesday, April 07, 2004 This is the VOA Special English Health Report. Many people around the world suf

发表于:2019-01-19 / 阅读(153) / 评论(0) 分类 健康与经济

In contrast, Jupiter and Saturn are all atmosphere. Unlike Earth, Jupiter doesnt really have a solid surface that you could stand on and then have your head up in the atmosphere looking at the clouds. Its just a giant, giant gas ball. Only one other

发表于:2019-01-23 / 阅读(72) / 评论(0) 分类 探索与发现2014年

Our chemistry, our very nature, our metabolism is completely shaped by the atmosphere. To appreciate our atmosphere, well rise through its layers, travelling from the planets surface, miles up above mountains and the clouds, to the very edge of space

发表于:2019-01-23 / 阅读(65) / 评论(0) 分类 探索与发现2014年

Well then, when you dive under the waves, Ned, for every thirty-two feet of water above you, your body is tolerating the pressure of one more atmosphere, in other words, one more kilogram per each square centimeter on your body's surface. 尼德兰,好

发表于:2019-01-28 / 阅读(67) / 评论(0) 分类 《海底两万里》中英双语有声读物

1. I know that every job has its own kind of pressure. 我知道每份工作都有自己的压力。 还能这样说: For me, it is job that has some kind of pressure on any person. I believe that pressure is evitable for people who have a job. 应用

发表于:2019-02-15 / 阅读(66) / 评论(0) 分类 情景会话口袋书人际篇

Congratulations, you've arrived on the hottest surface in the solar system. Here, the official temperature is eight hundred seventy degrees Fahrenheit. Day or night, equator or pole, the searing heat never varies more than a few degrees, and thats wh

发表于:2019-02-15 / 阅读(150) / 评论(0) 分类 自然百科2012年

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(74) / 评论(0) 分类 双语有声阅读

A 104 year-old woman was being interviewed by a reporter: And what do you think is the best thing about being 104? the reporter asked. She simply replied, No peer(窥视)pressure.

发表于:2019-02-18 / 阅读(127) / 评论(0) 分类 趣味英语

As altitude increases, atmospheric pressure decreases. This is due to Earth's gravitational pull on the air molecules in the atmosphere. The closer to the Earth's surface the stronger the force exerted on these molecules. 随着高度上升,大气压

发表于:2019-02-22 / 阅读(78) / 评论(0) 分类 留美老师带你每日说英文

In the days of diving suitsthe sort that were connected to the surface by long hoses, 在使用潜水衣即用长管子连接水面的那种装备的年代, divers sometimes experienced a dreaded phenomenon known as the squeeze. 潜水员有时候会

发表于:2019-02-25 / 阅读(72) / 评论(0) 分类 万物简史

Maybe. A change in barometric readings may be part of the reason: Atmospheric pressure often drops right before bad weather sets in; this shift could cause body tissue to expand, which can lead to swelling and pain. 也许吧,气压变化有可能是

发表于:2019-03-06 / 阅读(177) / 评论(0) 分类 英语听力广播—Listening
学英语单词
17-hydroxysteroid dehydrogenase
accurateness
acid-rain
Algarrobal
Anapolis
antimason
antipholus
arctomys
at great expense
bankrupt(cy) law
be well-fed and well-clothed
beam engine
black-lead spar
Brackenheim
breslau (wroclaw)
brimborion
canal zone
cascode pulse
Cidaroida
congaree national park
deincrustant
diffuse interface
digital backup
discipline-oriented
disulphur
dyschondroplasia
earclip
electrode corrosion
electronic transfer unit
ergotaminine
ethyltin tribromide
fbos
fishlouse
flexible disc
flood protection measure
food cart
full-ended vessel
george mcgovern
gyrsome
hansels
heart-ratest
hemiorthotropy
horned lizard
hydro-mechanical drawing
hydrosyringomyelia
immigration rate
intercountry balance of payments adjustments
Ischio-pubis
isogonality
john duns scotuss
kirpichenko
Korthalsella
leedss
Los Taques
Lucena del Cid
Maggie
mericlinal chimera (jorgensen & crane 1927)
microarray
moving-magnet magnetometer
multitask link control
Neumann's formula
noise in gradient estimate
non-static process
nonerotically
operating stress
Opie paradox
over full employment
overleave
oxo group
permeation coefficient
polltical awareness
polyfiber
practical experiences
preout
Pseudo-Smaragd
psychedelic yawns
pyroelectricities
quick tree
radiometrictitration
Robert Burns Woodward
roller hearth
sample load
Sansk.
saturation dissolved oxygen
scrapped ship
second readings
selective retransmission
selliguea okamotoi
shahis
shrinelets
spaceplane
sullenberger
taileron
three cs model
to turn over
treatment in accordance with local condition
tri rotor pump
truncated tetrahedral number
tsukubas
whitworth screw pitch
wiring fittings
zero pressure resin