[水文 气象] 路面蒸发

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(386) / 评论(0) 分类 新概念优美背诵短文50篇

EXPLORATIONS - Mars Exploration, Part 2 By Paul Thompson Broadcast: Wednesday, February 04, 2004 (THEME) VOICE ONE: This is Shirley Griffith. VOICE TWO: An artists picture of a Mars Rover vehicle. And

发表于:2018-12-01 / 阅读(198) / 评论(0) 分类 Explorations

To better know their carbon footprint, a group of Australian landowners are doing their own calculations on what climate change could mean for them. They're looking at ways to improve yields and efficiency in their respective industries while lowerin

发表于:2018-12-02 / 阅读(190) / 评论(0) 分类 世界各地新闻集锦

Water on the Moon Studies in the journal Science report that instruments on three different spacecraft have found evidence for widespread trace amounts of water on the moon. Karen Hopkin reports For all you space buffs who like to keep track of wher

发表于:2018-12-07 / 阅读(153) / 评论(0) 分类 60秒科学

By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.

发表于:2018-12-07 / 阅读(162) / 评论(0) 分类 VOA2003(下)-农业与经济

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(269) / 评论(0) 分类 新东方背诵文选

I took this picture in the Tihamah Desert while 25 millimeters -- that's an inch of rain -- was falling. 这张照片是我在提哈迈沙漠拍的下着25毫米(一英寸)的雨。 Think of it in terms of drums of water, each containing 200 lite

发表于:2018-12-19 / 阅读(110) / 评论(0) 分类 TED演讲教育篇

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

发表于:2018-12-24 / 阅读(121) / 评论(0) 分类 Scientific American(九)月

Why does Florida have so many springs? Florida sits on a layer of porous limestone which acts as an underground reservoir or aquifer. This aquifer can absorb huge amounts of water. Where the pressure is great enough, springs bubble up, spewing up bil

发表于:2018-12-26 / 阅读(134) / 评论(0) 分类 自然百科2009年

How Rocks Appear In Your Garden I wonder how many of us went out this past spring to get our gardens ready for planting, smug in the thought that last year we got rid of all the rocks. Theres that nice big mound of them in the corner of the garden wh

发表于:2018-12-31 / 阅读(109) / 评论(0) 分类 英语听力文摘 English Digest

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

发表于:2019-01-04 / 阅读(172) / 评论(0) 分类 VOA2004(上)--各类新闻

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(134) / 评论(0) 分类 英语小短文

This is the VOA Special English Agriculture Report. Pieter Hoff used to export lilies and tulips from the Netherlands. He retired from the flower export business seven years ago. Now, he is trying to help people grow trees and plants in the desert --

发表于:2019-01-11 / 阅读(166) / 评论(0) 分类 2010年VOA慢速英语(七)月

Recently at a site only two kilomtres to the southeast, archaeologists have unearthed the first traces of people living in the same period. It's a find that may finally answer why stonehenges located where it is. Here is the section through one of th

发表于:2019-01-23 / 阅读(139) / 评论(0) 分类 探索与发现2015年

DEVELOPMENT REPORT - Need to Dig a Well? Start HereBy Gary Garriott Broadcast: Monday, May 15, 2006 This is Shep O'Neal with the VOA Special English Development Report. There are several low-cost ways

发表于:2019-01-30 / 阅读(150) / 评论(0) 分类 2006年慢速英语(五)月

WASHINGTON, May 17 (Xinhua) -- The U.S. National Aeronautics and Space Administration (NASA) announced Tuesday that the international Aquarius/SAC-D observatory will be launched on June 9, to study interactions between ocean circulation(循环) , the

发表于:2019-02-08 / 阅读(120) / 评论(0) 分类 英语新闻

We might not be alone in the universe. Actually, it may be confirmed as a very crowded place by new computer models developed to help identify habitable planets. Estimates of places that can sustain life have been based on the likelihood of them havi

发表于:2019-02-13 / 阅读(101) / 评论(0) 分类 英语听力精选进阶版

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(113) / 评论(0) 分类 双语有声阅读

We are rediscovering the enigmas(谜团) of the Moon and they're really in our own backyard Dr Jim Garvin, Nasa Goddard Space Flight Center Moon water has world in a twitter A surprising amount of water has been found to exist in the Moon's soil. Data

发表于:2019-02-18 / 阅读(128) / 评论(0) 分类 英语新闻

Plants in the Deserts Some cacti, like the saguaro, grow to tree size, but true trees need more moisture than most desert environments can supply, so they are scarce on deserts. Close to streambeds, cottonwoods can sometimes be found. Though these st

发表于:2019-02-25 / 阅读(116) / 评论(0) 分类 双语有声阅读
学英语单词
actinin(e)
add arrow
alkali matrix deposit
antipolaron
ar rahhaliyah
avarams
beta-globulins
bipedicall
brewton-parker
bullclam
cayes
characteristic roots
circumscriptus
complement on nine
continuously maximum rating
cowy
coxal
deltalin
dijudicative
double silk covered copper wire
dualism
evodone
face mill cutter grinding attachment
ferroxcube
flood the market with
fore peak water tank
full head rivet
Galilean moon
geomagnetic chart
herball
Heubach
hippotion celerio
hydroxydicyclopentadiene
ichthyosis sauroderma
identikits
juvenile form
kidney opening at ear
lachnum attenuatum
Lahnau
Ligamentum hepatorenale
lightning impulse
lipid-soluble vitamin
Litke, Ostrova
loan to subsidiary
locust eater
low-temperature brittleness
lowenherz thread
macgill
Marcel Proust
meldoline blue
metal ridgecapping
mild salting
misogynously
Mono County
MTV generation
Muscidae
neo-babylonian
non calcarious soil
non-inverting buffer
notice money
Nuremberg defense
nymphoid
Open eBook Forum
osteichthyans
oxyneolignans
oxyphilic
parallel portion
pelfer
Play Cu, Cao Nguyen
postpubescent
quality-controlled
rail laying machine with cantilever
rate of return on investment(ROI)
raycasting
reasonable interchangeability
resoflavin
restitutio
rubber file
schuknecht
spacecraft prelaunch test
speedup condenser
spongiocytoma
stationary radio station
submittal
subtenancy
system engineering tools
tavis
TDDL (time-division data link)
temperature - sensitive mutant
tetarconid
thermo(metro)graph
trimethye-ethylene
Trout River
typefounders
ultra thin polished section
wear stripes
wireless relay broadcasting
wobble bond
yolk sac antigen
you can't run with the hare and hunt with the hounds
zerang
zidometacin