[环境] 废水处理工艺化学

I am going to take a chance and say that very few people enjoy going to the dentist, especially for a filling. A dentist usually treat a cavity by removing the damaged part of the tooth. Then they fill the hole with porcelain or a combination of silv

发表于:2018-12-07 / 阅读(148) / 评论(0) 分类 2017年VOA慢速英语(四)月

[00:21.89]lesson 1 [00:36.05]Have/has got =have/has [00:59.22]I have got a CD player, [01:03.97]but Jim hasn't got one. [01:10.92]Has Lucy got one? [01:22.99]I have a CD player, [01:31.66]but Jim hasn't/doesn't have one. [01:50.60]Does Lucy have a Cd

发表于:2018-12-10 / 阅读(208) / 评论(0) 分类 初中英语人教版初三

A group in San Francisco is honoring former President G.W. Bush by proposing to name a new wastewater treatment plant after him. We hope that this will catch on nationwide, said activist Bill Maher. Every state should have a wastewater treatment plan

发表于:2018-12-11 / 阅读(176) / 评论(0) 分类 365个英语简短小故事

梁丽萍老师根据网友和学生回忆的版本还原出了以下的简约版流程图,并附上了参考范文,供考生们参考。 The diagram illustrates how rain water is processed into drinking water by using different facilities in an

发表于:2018-12-12 / 阅读(198) / 评论(0) 分类 雅思机经

[00:03.89]Lesson 5 1 Dialogue [00:09.64]Mr Zhu is showing the students of Class 4 the chemistry lab. [00:16.30]Mr Zhu: Now,this is the chemistry lab. [00:20.45]Have you been in this lab before? All:No. [00:25.50]Mr Zhu: Ok,listen carefully,please. [0

发表于:2018-12-13 / 阅读(237) / 评论(0) 分类 高中英语人教版高一

This Scientific Americans podcast is sponsored by audible.com, the number-one online resource for best-selling audio books and more. And now audible.com is offering Scientific American listeners a free audio book of your choice. For details go to aud

发表于:2018-12-24 / 阅读(127) / 评论(0) 分类 Scientific American(十二)月

发表于:2018-12-25 / 阅读(190) / 评论(0) 分类 洋话连篇

Scientists Find Large Amounts of Precious Metals in Wastewater In recent months, stories about sewers getting clogged have made international headlines. For example, a so-called fatberg, a mass of grease and diapers, clogged London's sewers. A new st

发表于:2019-01-03 / 阅读(216) / 评论(0) 分类 2017年VOA慢速英语(十一)月

As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la

发表于:2019-01-03 / 阅读(230) / 评论(0) 分类 2014年VOA慢速英语(八)月

Wastewater Key to Sustaining Life The world population is growing rapidly and is expected to reach 9 billion by 2050. While efforts are underway to ensure theres enough food, one scientist is warning there may not be enough water. Professor Stanley G

发表于:2019-01-13 / 阅读(169) / 评论(0) 分类 VOA标准英语2012年(八月)

Joe DeCapua 15 April 2010 Over the years, theres been debate over when to start HIV-positive patients on anti-retroviral drugs, or ARVs. At first the standard practice was to wait until a persons immune system had nearly collapsed. But a growing body

发表于:2019-01-13 / 阅读(223) / 评论(0) 分类 VOA标准英语2010年(四)月

Having the opportunity to take on a diverse range of classes such as economics and chemistry along with her music studies is the perfect combination for Diane. Marsha James | Washington DC 10 August 2010 Oberlin Conservatory of Music Student Diane Ly

发表于:2019-01-13 / 阅读(196) / 评论(0) 分类 VOA标准英语2010年(八)月

Automation 自动化 A: Is the factory fully-automated? A:本工厂是全自动化吗? B: Not completely. Our production process is partially-automated. We use robots on the production line for routine assembly jobs but some of the work is still do

发表于:2019-01-14 / 阅读(193) / 评论(0) 分类 职业技术英语口语

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(214) / 评论(0) 分类 2016年Scientific American(十)月

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(231) / 评论(0) 分类 PBS访谈环境系列

By Tom Rivers London 07 October 2009 Ada Yonath (file photo) Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA code is translated into life itself. Americans Venkatraman Ramakrishnan and Thom

发表于:2019-02-03 / 阅读(214) / 评论(0) 分类 VOA标准英语2009年(十月)

By Kevin Billinghurst Stockholm 10 October 2007 The 2007 Nobel Prize for Chemistry has been awarded to Gerhard Ertl of the Max Planck Society in Berlin. Kevin Billinghurst has the story from Stockholm. The Royal Swedish Academy of Sciences honors Pr

发表于:2019-02-04 / 阅读(210) / 评论(0) 分类 2007年VOA常速英语(十月)

By Claudia Blume Hong Kong 11 December 2007 The Asian Development Bank says that governments in the region need to improve the management of water resources to avoid a crisis in water security. Claudia Blume reports from VOA's Asia News Center in Hon

发表于:2019-02-05 / 阅读(165) / 评论(0) 分类 VOA常速英语2007年(十二月)

A Japanese and a pair of American scientists captured this year's Nobel chemistry prize for discovering a glowing green protein in jellyfish that can be used to spot the beginning of diseases like cancer. Lisa Bryant has more on the prestigious awar

发表于:2019-02-06 / 阅读(188) / 评论(0) 分类 VOA标准英语2008年(十月)

Tom: Jess, you were talking before about getting your hair done. Jess: Every month, I have my hair done. Well, every four to six weeks I have my hair done. I have highlights which is one color. They take small strands of the hair and color that so ov

发表于:2019-02-16 / 阅读(135) / 评论(0) 分类 英语趣味课堂
学英语单词
a man of high standing
air-traffic control zone
ancora
automatic fire door parts
automatic train speed restriction
bank-to-bank
baronduki
bumper injury
come off high horse
confocal conics
counterpropagation laser pulse
coverand
covered emplacement
cutting-off machines
cylindrical expansion valve
data mashup
Denison I.
direct pyrolysis
doctrine of precedent
electric gantry crane
electrically-operateds
empirical bayes estimator
engine plance
Euler-Poisson-Darboux equation
family sirenidaes
fenugrin
field-trip
fish-finder
free stream velocity
frontier orbital
gas post
globoser
goniastrea favulus
gonochorist
granopatic
Guilford County
hagers
hedgehog gourd
holding area
Hubble, Edwin Powell
image motion compensation device
imidodisulfamide
input error voltage
Kidira
La Machine
lipomatosis of renal hilus
liquid level regulator
liquid-oxygen
mad apple
mades-to-order
malignant smallpox
mantells
mcconn
montassio
mucous diarrhoea
Nanjinger
natural population growth
ocular focusing
oestrodienolum
operator gene
orthogonal contrast
PAM winding
particle-size weight frequency
patent of invention
phonolaryngograph
phylum entoproctas
piedmont depression basin
plumbago (graphite)
Podocarpus ferruginea
posthumous title
prairie-chicken
preventer hawser
primitive volcanic atmosphere
public chair
rallying cries
realization value
reinforcement displacement
reknen
restorationer
rms-to-dc converter hybrids
ruffoes
Santa Isabel, Cayo
scratches together
semi intelligent
sinopiss
soundboard
start box
SU9-DHFR
sustained ceiling current
tactical weapons system
tapered-roller
tininesses
Tullins
two-quanta process
unfatiguable
unjuried
unlarge
unsever
volterras
voluntary-contributions mechanism
wear surface
Yttrobastnaesite