[医] 氯化铅

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(138) / 评论(0) 分类 VOA标准英语2014年(六月)

This is one of the reasons why Canada, 这就是为何加拿大 originally a climate change hero -- 它原本是环保英雄- we were one of the first signatories of the Kyoto Accord. 我们是第一批签署京都议定书的国家之一 Now we're

发表于:2018-12-08 / 阅读(122) / 评论(0) 分类 TED演讲娱乐篇

Over centuries, the Irish built a rich heritage of castles and monuments, using an abundance of local stone. Now many of the structures are damaged. The stone is decaying. Thanks in part to Irelands notoriously damp weather, these sites are in danger

发表于:2018-12-26 / 阅读(146) / 评论(0) 分类 自然百科2010年

Broadcast: Apr 02, 2003 The investigation into what caused the break-up of the U.S. space shuttle Columbia supports the theory that a left wing panel broke off during its mission, possibly playing a r

发表于:2019-01-03 / 阅读(178) / 评论(0) 分类 VOA2003(上)-科技先知

Study: African Aluminum Pots Contain Lead 研究表明非洲铝锅含有铅 Locally made aluminum pots in Cameroon, and probably in much of Africa, are likely to be contaminated with lead ( (Courtesy: Occupational Knowledge International). Locally ma

发表于:2019-01-14 / 阅读(116) / 评论(0) 分类 VOA标准英语2014年(八月)

From Haridwar. I followed the Ganges more than 300 miles South east to the major industry city. India's population has more than doubled in the last forty years. It's now more than 1.2 billion people in the country. The impact on the river has been a

发表于:2019-01-16 / 阅读(95) / 评论(0) 分类 自然百科2015年

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(130) / 评论(0) 分类 2018年NPR美国国家公共电台11月

And we're replacing that with the largest industrial project in the history of the world, 将它转变成史上最大的工业项目, which is producing the most high-carbon greenhouse gas emitting oil in the world. 生产温室气体排放量最大的

发表于:2019-01-18 / 阅读(122) / 评论(0) 分类 TED演讲商业篇

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(187) / 评论(0) 分类 2016年Scientific American(一)月

Over centuries, the Irish built a rich heritage of castles and monuments, using an abundance of local stone. Now many of the structures are damaged. The stone is decaying. Thanks in part to Irelands notoriously damp weather, these sites are in danger

发表于:2019-01-22 / 阅读(143) / 评论(0) 分类 自然百科2009年

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(128) / 评论(0) 分类 自然百科2009年

Parenting on the move is all about sacrifice. And in the forests of northeastern Australia, another great journey spurred by parental dedication is about to begin. On translucent tawny wings, a little red flying fox flaps homeward after a night of in

发表于:2019-01-22 / 阅读(95) / 评论(0) 分类 自然百科2011年

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(129) / 评论(0) 分类 地道美语播客

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(215) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
'ull
acartia (acanthacartia) fossae
actylacetone
adrenergic nerve
adulterises
Ahmetli
Alectoria
analog-digital converter
anthrar
arch-enemy
artane
at one's finger tips
automatic cop winder
avellana
B-light
breast-milk
brotherman
carbide method
chaenomelis fructus
chip microcomputer-based VLP detecting instrument
Citygate
complete of wrench
compressed-nitrogen condenser
crown closure
current measuring probe
delusion of being stolen
dental anatomies
domestic water
double duct air-conditioning system
drilling footage
duct hyperplasia of mammary glands
Dunrossness
environmental accident
errantry
Euarctos americanus
furcifer
graft sth onto sth
groove pass
gun propellant variable charge
have a lot in common
high-level slewing tower crane
higher school certificate
Hornu
hyperdynamia
icon display
in mitigation
industrial device
influenza B virus
jannick
lhotes
loop chain
lymphoreticular
meganthias kingyo
membrana tympanica
memory management module
microperf
musical source
Mutambara
N-terminus
nizke tatry (low tatra)
OODL
order testudiness
Ossa partis liberi membri inferioris
pack duck
paddleball
pan filler
pancreatic diastase
Peleagonzalo
plancks constant
Pohjois-Karjalan Lääni
post critical
precast gel
profit guarantee
protein(Berzelius)
put-up
quasi-local ring
radiation annealing effect
refilling of damaged slope top
rhythmogenesis
RU-EF-TB
saturate
scrubbing-and-drying unit
serialograp
slide out of
St. Denis
superficial x-ray teletherapy machine
synches
synchornization word
tailband
three to one insulin
transistorized multimeter
triple roller wave generator
Tsuu T'ina
tulipanin
unavowable
ustinova
vacuolate
virion
vodder
water-troughs
winking monkeys
wursthorn