挥发性有机物[质]

By Mario Ritter Broadcast: July 8, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Recently, a listener in Nigeria told us about an organization called World-Wide Opportuniti

发表于:2018-12-07 / 阅读(221) / 评论(0) 分类 VOA2003(下)-农业与经济

By Steve Baragona Washington 29 October 2009 Garden pest As farmers across the United States are bringing in the harvest, silos are filling up with record or near-record quantities of corn and soybeans. To an extent not seen anywhere else in the wor

发表于:2018-12-16 / 阅读(191) / 评论(0) 分类 VOA标准英语2009年(十月)

Podcast is sponsored from the people of American Chemistry, who provide the plastics, medicines, and innovations that make life modern. Learn more at americanchemistry. com. This is Scientific American's 60-Second Science, Im Karen Hopkin. This will

发表于:2018-12-24 / 阅读(176) / 评论(0) 分类 Scientific American(七)月

(man) Today I want to discuss fossil fuels such as coat, oil, and natural gas. The term fossil fuel refers to the trapped remains of plants and animals in sedimentary rock. You see, living plants trap energy from the sun by the process of photosynth

发表于:2018-12-30 / 阅读(157) / 评论(0) 分类 托福听力短文

The subject of many people's conversations is the flu. Everybody is talking about it. The clinics and hospitals are full of people who have flu symptoms, and supermarkets have shelves full of medicines, tissues(1), and vitamin powders. I've been luck

发表于:2019-01-01 / 阅读(182) / 评论(0) 分类 英语博客 A cup of English

The United States space agency says its Mars exploration vehicle has discovered chemical substances necessary for life. Scientists reported that NASAs Curiosity rover found large amounts of organic molecules in 3.5 billion-year-old rock in an area ca

发表于:2019-01-03 / 阅读(181) / 评论(0) 分类 2018年VOA慢速英语(六)月

Broadcast: Mar 17, 2003 Rain hits the 1) shingles on the large covered porch that leads up to David Masumoto's farmhouse. From the porch he can see 90-year-old 2) raisin 3) vineyards his family has te

发表于:2019-01-03 / 阅读(237) / 评论(0) 分类 VOA2003(上)-科技先知

This book stinks! is really a bad review. But even a classic work can start to smell when it gets old enough. Now chemists have developed a technique that identifies what kind of degradation process an old book or historical document is going through

发表于:2019-01-08 / 阅读(181) / 评论(0) 分类 Scientific American(十一)月

AGRICULTURE REPORT – June 25, 2002: Organic Farming Study By George Grow (Photo -Scott Bauer) This is the VOA Special English Agriculture Report. Agricultural scientists in Switzerland have demonstr

发表于:2019-01-11 / 阅读(169) / 评论(0) 分类 农业与发展

A melon field is pictured at a farm in the village of Djilakh, 80km south of Dakar, Senegal on 22 Apr 2008 (file photo) African farmers are making more money producing organically grown crops for European markets, where demand for healthier food is g

发表于:2019-01-11 / 阅读(190) / 评论(0) 分类 VOA标准英语2010年(四)月

AGRICULTURE REPORT — November 12, 2002: Organic Food Labeling By Mario Ritter This is the VOA Special English Agriculture Report. Last month, Secretary of Agriculture Ann Veneman announced a program

发表于:2019-01-11 / 阅读(198) / 评论(0) 分类 农业与发展

今天我们要学的词是organic。 Organic, 有机的,绿色的。 Organic product, 有机产品。近年来,美国很多消费者开始崇尚绿色、有机食 品。不过,统计数字显示, Organic food accounted for only 3.5% of the f

发表于:2019-01-11 / 阅读(170) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是organic。 Organic, 有机的,绿色的。 Organic product, 有机产品。近年来,美国很多消费者开始崇尚绿色、有机食品。不过,统计数字显示, Organic food accounted for only 3.5% of the fo

发表于:2019-01-11 / 阅读(211) / 评论(0) 分类 英语每日一词

More Land Being Used for Organic Farming More land around the world is being dedicated to organic farming. The Worldwatch Institute says since 1999 theres been a more than three-fold increase to 37 million hectares. Organic farming is farming without

发表于:2019-01-13 / 阅读(203) / 评论(0) 分类 VOA标准英语2013年(一月)

Air pollution 空气污染 A: I've heard of ground-level ozone but can you explain what it is exactly? A:我听说近地面臭氧,但是你能确切解释一下是什么吗? B:Yes, it's one of the main air pollutants. Factories don't emit it dire

发表于:2019-01-14 / 阅读(194) / 评论(0) 分类 职业技术英语口语

SCOTT SIMON, HOST: Organic milk is widely available these days, but what does that label really mean? A new Washington Post investigation found that there are considerable differences between the organic milk you can buy in a grocery store and the ki

发表于:2019-01-17 / 阅读(198) / 评论(0) 分类 2017年NPR美国国家公共电台5月

Voice 1 Hello. Im Marina Santee. Voice 2 And Im Elizabeth Lickiss. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Milk chocola

发表于:2019-01-19 / 阅读(187) / 评论(0) 分类 环球英语 Spotlight

Judging a Book by Its Odor A study in the journal Analytical Chemistry identifies various organic compounds that old books give off and that can be analyzed noninvasively, offering important clues to an historic work's condition and prognosis. Steve

发表于:2019-01-30 / 阅读(309) / 评论(0) 分类 60秒科学

AGRICULTURE REPORT – July 30, 2002: Chemicals on Organic Food By George Grow (Photo -Scott Bauer) This is the VOA Special English AGRICULTURE REPORT. Farmers who grow organic food do not use chemica

发表于:2019-01-30 / 阅读(219) / 评论(0) 分类 农业与发展

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im

发表于:2019-01-30 / 阅读(284) / 评论(0) 分类 农业与发展
学英语单词
aethiopicus
Andefjord
assemblies (london)
Autlan
blait
Boechlensipollis
Bolzano process
cavitas glenoidalis
chart compass
color prime white
cored vesicle
courmayeur
credited with
cryogenic freezing
customer costing
deep in the night
deratting measure
disgrader
disilyls
dispargums
dreamwrapt
drive-
empacket
end to end communication
environmental fluid mechanics
EPH
epistles of paul the apostle to the romans
extended system contents directory
fan-draught cooler
Fell-O'Dwyer method
Fil'akovo
flux wave
furnace dry out
gill lamella
ground surveillance radar (gsr)
handcraftsman
heterogeneously
hot-cracking test
Huguier's disease
in gratitude for
jH-factor
joint operation of heat-supply networks
juju
l? ts'ai
lacbobacillus acidophilum
laidler
launching unit
laurolinium acetate
lecture for
letterset printings
library of cross section
linear compressibility
loop-around test
manquea
maximum minimum property
McKinley Seamount
Megalocin
model of mineral deposit
Myxosprorium
niahite
north area
Obenstrohe
of any
osloes
palaeoengineering
papilla (e)
pickatree
plectrons
polyhydric
post-emulsification penetrant
pseudopodzol
pulmonary ventilation volume
pur-
Ranunculus xinningensis
reflex angina
rhinocoelia
rigid body dynamics
roday
role-mapping
runzheimer
sacrificial protection
schlenke
serial memory
serration hob
side sway
sound transparent rubber
St Agnes
suburbio
teartape
teleplastic
through-the-lens
time varying gain
troughed belt conveyer
unadjusted trial balance
upflow continuous dissolver
valley
virtual offices
Waitangi Day
wartski
wing-duct inlet
worker(s') participation
zinc-oxygen fuel cell