分段式多级离心清水泵

44.Obtaining Fresh water from icebergs The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being con

发表于:2018-11-28 / 阅读(512) / 评论(0) 分类 新概念优美背诵短文50篇

Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr

发表于:2018-12-07 / 阅读(174) / 评论(0) 分类 (科普英语)Earth and Sky

Broadcast: February 21, 2003 By George Grow This is the VOA Special English Environment Report. Everywhere, water use is increasing. Humans already use fifty-four percent of all the fresh water in riv

发表于:2018-12-07 / 阅读(139) / 评论(0) 分类 VOA2003(上)-社会广角

The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is

发表于:2018-12-15 / 阅读(164) / 评论(0) 分类 新东方背诵文选

听力文本 Recording 19 录音19 A. At the bottom of the system, there is a storage tank, which can hold up to 500 litres of rainwater. The water stored in the tank can be used for general gardening and cleaning. A、在该系统底部有个贮存水

发表于:2018-12-18 / 阅读(180) / 评论(0) 分类 走进剑桥大学

05Using the Restroom GLOSSARY restroom a public bathroom; a large room with one or more toilets and sinks* Do you know where the mens restroom is? mess disordered; unclean; not organized or neat* Your room is a mess! Please clean it up before your gr

发表于:2018-12-26 / 阅读(143) / 评论(0) 分类 2008年ESL之日常生活

The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations,

发表于:2018-12-30 / 阅读(126) / 评论(0) 分类 考研背诵50篇

Steve, are you a firefighter, too? Violet asked as they followed him. Yes, he said, wheeling himself through a side door. I used to be on active duty, until I was injured in an accident. Since then I havent been able to walk. So now I work in the off

发表于:2018-12-31 / 阅读(164) / 评论(0) 分类 56 The Firehouse Mystery

Water is the

发表于:2019-01-02 / 阅读(197) / 评论(0) 分类 知性英语

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(188) / 评论(0) 分类 60秒科学

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 Scientific American(五)月

This is the second in a two-part intermediate Business English Pod lesson on the basics of socializing and networking. Last time you learned ways to start and finish a conversation appropriately. Today youll be studying how to keep a conversation goi

发表于:2019-01-18 / 阅读(163) / 评论(0) 分类 原汁原味商务英语播客

Engineer and inventor Martin Fisher has applied his passion for improving things to the challenge of eliminating poverty in rural Africa. As Maura Farrelly reports, his non-profit organization is transforming the lives of thousands of poor African f

发表于:2019-01-20 / 阅读(119) / 评论(0) 分类 VOA标准英语2008年(九月)

Let's look first. The fresh water that we depend on begins its life in the oceans. As the sun's rays beat down on the surface of the sea, they heat the water molecules until some evaporate. It's the start of an extraordinary journey. Here with water

发表于:2019-01-22 / 阅读(104) / 评论(0) 分类 自然百科2010年

Todd: So Carla, you lived in Africa. Carla: We got married in Africa. Todd: Wow. Carla: And we moved to Nigeria. As I told you before, we got married in Ghana, and we moved to Nigeria. And our kids were born in Nigeria. But I wanna tell you a little

发表于:2019-01-30 / 阅读(208) / 评论(0) 分类 英语访谈对话

A big,black crow wanted to drink some water.She saw a big jug with some water at the bottom,but she could not reach the water.I know,she said,I shall put some stones into the jug.Then the water will come up to the mouth. After the fir

发表于:2019-02-04 / 阅读(145) / 评论(0) 分类 趣味英语

Eliminate fireplace odor There's nothing cozier on a cold winter night than a warm fire burning in the fireplace -- unless the fire happens to smell horrible. Next time you have a fire that sends a stench into the room, try throwing a few lemon peels

发表于:2019-02-06 / 阅读(169) / 评论(0) 分类 阅读空间

Todd: So Carla, you lived in Africa. Carla: We got married in Africa. Todd: Wow. Carla: And we moved to Nigeria. As I told you before, we got married in Ghana, and we moved to Nigeria. And our kids were born in Nigeria. But I wanna tell you a little

发表于:2019-02-18 / 阅读(112) / 评论(0) 分类 原版英语对话1000个

If you visit upland areas of Britain places like the mountains of Scotland, or Wales, or the Pennine Hills in northern England you will see a lot of sheep. Many of the sheep are in places where there are no walls or hedges to keep them in their field

发表于:2019-02-19 / 阅读(152) / 评论(0) 分类 听播客学英语

The Minister for the Environment, Dr Nick Smith, said today that the government will spend money on controlling our fresh water and will make some important laws. New Zealand is number 3 in the world for the amount of water per person. We have many r

发表于:2019-02-25 / 阅读(176) / 评论(0) 分类 新西兰英语
学英语单词
absolute deviation integral
acidophilic granulocyte
ammonium biborate
arris-wise paving
back-bearing
Becke's sign
bicycle lanes
binary-coded output
bracket tray
caboose valve
cephalic triangle
chaser hammer
collonema
continuous phase in emulsion
convergence solution
cosigning
creditor's claim
Cypripedium elegans
divided dose
dummy whist
easterdays
eccaleobion
eigh
elution period
epidemic diarrhea of infant mice (edim)
Eure, Dép.de l'
exfoliation cracking
farradic current
faxmodems
flow line diagram
foregoings
free circuit condition
full-duplex switched ethernet
function limiter
gas concrete
generalized programming language
HESCA
hiding pigment
hydrogen overvoltage
hypergammaglobulinaemia
image metadata
iodization
isolate
lcas
lecturing
levator anguli oris
magic cube
mark pulse
memory access conflict
meses
method of production
monn
monte carloes
multi roll straightener
multipoint mooring
nonharmonic constant of tide
nonseismic region
nonsignificant
OM-Furan
onur
outmaneuvered
Panhellenic
parasexual hybridization
partial oxidation cracking
pectinase
physiological ecology,physioecology
pillar of strength
podocystis spathulata
polygons
popliteal
price protection plans
problem-focused
proliposomal
psychologytable
pump room
pus tubes
pyruvate kinase
reference record
rivu-
Semitic cuneiform characters
slow poison
smog-control device
soap water film
sparsely
speakest
stepless canal
suction aspirator tip
suffocations
suhrs
sunsuits
tee ... off
television pick-up equipment
teshirogitlite
tinpots
tiptoes around
to hound
Treponema cuniculi
Ureshino
waste-yards
wherewhen
winter melon
yolk cells