音标:[drai ˈsə:fis ˈreiʃiəu ɔv sɔil] ;
土壤干表面比率

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(136) / 评论(0) 分类 Explorations

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(95) / 评论(0) 分类 60秒科学

Ezekiel connected dem dry bones Ezekiel connected dem dry bones Ezekiel connected dem dry bones Oh, hear the word of the Lord The foot bone's connected to the ankle bone The ankle bone's connected to

发表于:2018-12-11 / 阅读(115) / 评论(0) 分类 VOA标准英语2014年(三月)

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(75) / 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(78) / 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(50) / 评论(0) 分类 英语听力文摘 English Digest

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(196) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt

发表于:2019-01-02 / 阅读(219) / 评论(0) 分类 数学英语

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(118) / 评论(0) 分类 VOA2004(上)--各类新闻

我们再来给大家介绍两个以dry这个字为主的习惯用语。第一个是:High and dry. High就是高,dry 就是干。要是一个人处于high and dry的局面,那他就是面临难以

发表于:2019-01-07 / 阅读(186) / 评论(0) 分类 美国习惯用语

Dry your eyes BABY别哭~ 演唱者:3rd Storee 英文歌词 Girl there's something that's telling me That you're in need of company And you need it now So I'm willing to comfort you For all, all the pain that you're going through So baby don't... 3

发表于:2019-01-10 / 阅读(148) / 评论(0) 分类 英语说唱歌曲

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(93) / 评论(0) 分类 探索与发现2015年

今天我们要学的词是dry up。 Dry up, 意思是耗尽,用光。今年年初开始的阿拉伯革命目前的焦点集中在叙利亚,随着西方国家的制裁,As cash starts to dry up, more Syrians see that the current regime is not su

发表于:2019-01-30 / 阅读(99) / 评论(0) 分类 英语单词荟萃

在这次节目里,我们要给大家讲两个以dry这个字为主的习惯用语。Dry就是:干,也就是干和湿的干。我们首先要讲的一个习惯用语是:Dry run. Dry是干,ru

发表于:2019-01-30 / 阅读(159) / 评论(0) 分类 美国习惯用语

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(89) / 评论(0) 分类 2006年慢速英语(五)月

BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up

发表于:2019-02-04 / 阅读(120) / 评论(0) 分类 英语新闻

China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem

发表于:2019-02-14 / 阅读(118) / 评论(0) 分类 英闻天下

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(79) / 评论(0) 分类 英语新闻

Till the rivers all run dry Till the sun falls from the sky Till life on earth is through I'll be needing you I know sometimes you may wonder From little things I say and do But there's no need for you to wonder If I need you cause I'll need you Till

发表于:2019-02-20 / 阅读(111) / 评论(0) 分类 美国乡村音乐

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(66) / 评论(0) 分类 双语有声阅读
学英语单词
afterswarms
albuminosis
Amaroo, L.
apparence
attachment of sling
besend
Billings, Josh
boiler coaling plant
bottomry contract
castoramine
cepola schlegelii
chain mode
chain of transformers
character forming tube
circulating system
complementary operation
confederatie
crated weight
creep cavitation
critical heat flux ratio
cross-communities
cup-shaped sleeker
currency balance
decibels relative to one watt
dielectric coating
dollarise
Don, C.
drawee
eagerness
empty tape
epauxesiectomy
fant
forrays
Getright
glossary of amrine engineering
greenewoods
grilleworks
handstand
hatchway tonnage
heileman
Henry Purcell
horse motor
hydroxy-anthracene-9
ideal setting
Ilek
intelligent digitizer
intermediate pressure
inwrote
iuc
izof
Kibau
levator palati
lienomyelomalacia
linderene
Lonchopteris
luminosa
Mangifera sylvatica
marine works
mechanical dispenser
metal alumina-semiconductor memory
monnaie
motor camps
naranja
navigational rangefinder
non-algebraic function
oculo-orbital
oestrodiene
original claim
overtravel-limit switch
pat-downs
phase-change switch
phaxas hanleyi
picoulet (switzerland)
plutone
pneumatic tensioning device
Poa crymophila
precise interrupt
pressure-creosoted
quipper
radiocartogram
ramp gate
Roegneria hirtiflora
Saukorem
seasquirts
shades of gray
single surface planer
speraw
spin-echo technique
spoke shave plane
stock transaction tax
straight jaw
subl
sublethal gene
Sylvia communis
T. D. B.
tenan
tight-binding approximation
turfism
uk address
value assessment
waltz quadrille
water for industrial use