沥青薄膜防水层

Fish live in water, but do they drink it? The answer is yes, but how fish drink water depends on where they live. Water gets into a fish's body through osmosis, the process in which water diffuses from a higher to a lower concentration. For example,

发表于:2018-12-03 / 阅读(140) / 评论(0) 分类 初学者听力文摘精选

ESL Podcast 1183 Air and Water Pollution Julia: Stop poisoning us! Stop poisoning us! Robert: Why are you picketing in front of this factory? Julia: This factory is polluting our air and water. Theyre responsible for contaminating the environment wit

发表于:2018-12-04 / 阅读(132) / 评论(0) 分类 2016年ESL之日常生活

新型滤水技术或能带来价格合理清洁饮用水Developing the perfect water filter is Baoxia Mi's goal. Growing up in China, she learned the value of clean drinking water early on. Now at the University of California, Berkeley, the environ

发表于:2018-12-08 / 阅读(166) / 评论(0) 分类 VOA标准英语2016年(三月)

Fish do drink water, but how they consume it depends on where they live. Water gets into a fishs body through osmosis, the process in which water diffuses from a higher to a lower concentration. 鱼儿确实喝水,但它们怎样喝水却取决于其

发表于:2018-12-28 / 阅读(87) / 评论(0) 分类 初学者听力文摘精选

In China, saltiness is deemed as the most important flavor. 在中国的烹饪辞典里盐是百味之首 Every day except for rainy ones,Liu Yingwu is busy working in the brine pan. 不下雨的日子里,阿刘每天都要在盐田里忙碌 You ha

发表于:2018-12-28 / 阅读(141) / 评论(0) 分类 舌尖上的中国第一季

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(173) / 评论(0) 分类 国家地理2008年

Scientists and designers in London have found a possible solution to the problem of plastic bottle waste. 英国伦敦的科学家和设计师发现一个可以解决塑料瓶垃圾问题的方法。 The group at Skipping Rocks Lab has made a water b

发表于:2019-01-02 / 阅读(112) / 评论(0) 分类 2017年VOA慢速英语(五)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 Scientific American(一)月

考试日期: 2013 年 3 月 2 日 Reading Passage 1 Title: New Energy in USA Question types: True/False/Not Given; Flow Chart; Short Answer Questions 文章内容回顾 美国的一种新能源,关于从玉米中提取乙醇为燃料。 20060708旧

发表于:2019-01-08 / 阅读(181) / 评论(0) 分类 雅思机经

Todd: Ah, so Alan, you know, you were a baker so can you explain to the listeners: how do you bake bread? Alan: Well, you need, to make your basic white bread, white pan bread we call it, you need flour, yeast, sugar, shortening, salt, and water, so

发表于:2019-01-10 / 阅读(130) / 评论(0) 分类 原版英语对话1000个

New Smart Toilet to Prevent Water Pollution in Disaster Areas 灾区设新式智能卫生间防止水污染 WASHINGTON The destruction of sanitary systems by war or natural disasters can aggravate the initial tragedy, causing disease and prolonged ri

发表于:2019-01-14 / 阅读(156) / 评论(0) 分类 VOA标准英语2014年(八月)

New Smart Toilet to Prevent Water Pollution in Disaster Areas 新型智能马桶在灾区防止水污染 WASHINGTONThe destruction of sanitary systems by war or natural disasters can aggravate the initial tragedy, causing disease and prolonged risk o

发表于:2019-01-14 / 阅读(99) / 评论(0) 分类 VOA标准英语2014年(八月)

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after year

发表于:2019-01-22 / 阅读(125) / 评论(0) 分类 自然百科2008年

The snail appears to release chemicals that paralyse its victim. The goatfish seems powerless to escape as it's swallowed alive. Moments later, a venomous barb inside the snail puts the fish out of its misery. In a place where even seashells are dead

发表于:2019-01-22 / 阅读(109) / 评论(0) 分类 自然百科2014年

Fish live in water, but do they drink it? The answer is yes, but how fish drink water depends on where they live. Water gets into a fish's body through osmosis, the process in which water diffuses from a higher to a lower concentration. For example,

发表于:2019-01-26 / 阅读(113) / 评论(0) 分类 英语听力文摘 English Digest

By Phuong Tran Praia, Cape Verde 09 June 2007 Off the coast of West Africa, transport officials in the island nation of Cape Verde have begun a road improvement program. They say colonial-era cobblestone roads do not make much sense anymore, and are,

发表于:2019-02-03 / 阅读(167) / 评论(0) 分类 2007年VOA标准英语(六月)

Researchers in Sydney are leading a new international effort to make desalination more environmentally friendly. Current techniques tend to use excessive amounts of energy or are heavily reliant on chemicals. The University of Technology in Sydney is

发表于:2019-02-06 / 阅读(140) / 评论(0) 分类 英语新闻

Todd: Ah, so Alan, you know, you were a baker so can you explain to the listeners: how do you bake bread? Alan: Well, you need, to make your basic white bread, white pan bread we call it, you need flour, yeast, sugar, shortening, salt, and water, so

发表于:2019-02-17 / 阅读(125) / 评论(0) 分类 英语访谈对话

The hydrogen atoms cling fiercely to their oxygen host, but also make casual bonds with other water molecules. 氢原子死死地抓住其主子氧原子不放,而且与别的水分子的黏合也很随便。 The nature of a water molecule means th

发表于:2019-02-25 / 阅读(126) / 评论(0) 分类 万物简史

Learn Why 'The Proof Is in the Pudding' Now, the VOA Learning English program Words and Their Stories. Each week we teach expressions often used in American English. We explain how to use them and sometimes where they come from. But do not take my wo

发表于:2019-02-25 / 阅读(125) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
4-nitrophenyl isocyanate
a bit longer
aluminumizes
arctic poppy
aspy
average combined cost
baea (british atomic energy authority)
bearing-capacity failure
bewailments
Bimiti
Bletilla striata
bovver boys
bring down the hammer
buffering range
butchershops
capacitance gauge
caprytchyous
chocolite
close-grained wood
coccidioidosis
coding strand
comb deseeder
compensation regulator
competition range
cryoimmobilized
cum explosion
Cysoing
DCMIA
delisea japonica okam
double standard of sexual behavior
endometriosis coli
explosive-type malfunction
fanicas
filetyped
fine-tuners
FOCRS REG
Fulgran
furlike
Gaianism
galvanizes
Gentiana callistantha
group to terminal
high pressure cable
high water neaps
ice bank evaporator
IN/SEC
initial transmission
kakum
kaneo
klunk
lancetfishes
liquid dielectric
Lirofen
loess chile
mahmuds
MCFP
Melun-Sénard
mid-mounted toolbar
Midaslike
miracle fruit
mucunine
natural(ly) falling down type dryer
nips off
odonto-pulpal prosthesis
oltactory lobule
ophoven
optically roughness
overlain
oxy-arc cutting equipment
particulate matter monitoring
pays in
Pecan Island
Philippe-Gombault's triangular bundle
pinwheel flowers
piping erosion
plattersful
player hate
replacement insurance
rowing-team
satin-bird
Schuchardt's operation
separate runner
sheet iron crance
single-valve circuit
spiral HP chipper
standard error of estimator
subquadratic
Tenay
Theo-X
three-fourthss
throo
tide and half tide
trichocereine
triethyl phosphite
under-investing
us mar
vibroacoustic monitoring
Vilas County
visual meteor
Vy-lès-Lure
white-throated hawks
zfies