土壤腐殖酸

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(208) / 评论(0) 分类 (科普英语)Earth and Sky

By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.

发表于:2018-12-07 / 阅读(106) / 评论(0) 分类 VOA2003(下)-农业与经济

Liberian Refugee Gets New Face After Devastating Acid Burn Henry Cole has lost count of how many times hes been wheeled into surgery. In the last two years, Cole has had more than a dozen procedures. And there are more to come. But he has no complain

发表于:2018-12-08 / 阅读(78) / 评论(0) 分类 VOA标准英语2013年(一月)

[00:00.00]Dean accent tap generally speaking [00:05.15]迪安(男名) n.口音;音调 n.(自来水等的)龙头 一般说来 [00:10.29]eastern notice differently Ottawa [00:15.43]adj.东方的;东部的 vt. n.注意;认识 adv.不同地 n.渥太华

发表于:2018-12-13 / 阅读(258) / 评论(0) 分类 高中英语词汇

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(249) / 评论(0) 分类 知性英语

Section 28 Acid Rain 50 years ago, no one talked about acid rain. Then we didn't really know the harm it was causing to the world. Today almost every adult and school child is aware of acid rain and i

发表于:2019-01-02 / 阅读(131) / 评论(0) 分类 英语导读1000句

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

发表于:2019-01-04 / 阅读(118) / 评论(0) 分类 VOA2004(上)--各类新闻

HEALTH REPORT - October 23, 2002: Folic Acid Reduces Fetal Deaths By Nancy Steinbach This is the VOA Special English Health Report. A new study in Sweden has confirmed another important health effect

发表于:2019-01-04 / 阅读(90) / 评论(0) 分类 健康与环境

This is the VOA Special English Agriculture Report. Soil naturally contains harmless amounts of lead, along with other metals. Because of pollution, however, the amounts are higher the closer you get to cities and towns. But experts say this should

发表于:2019-01-11 / 阅读(90) / 评论(0) 分类 VOA慢速英语2009年(六)月

Can Folic Acid Prevent Childhood Autism? From VOA Learning English, this is the Health Report in Special English. A new study found that women who took folic acid supplements in early pregnancy were less likely to have a child with autism. Folic acid

发表于:2019-01-12 / 阅读(137) / 评论(0) 分类 2013年VOA慢速英语(五)月

AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India A caf in India is hiring women who once stayed in hiding after being attacked with acid. One woman, Dolly Kumari, says she stayed inside for two years after a man threw acid on her. He wa

发表于:2019-01-12 / 阅读(126) / 评论(0) 分类 2016年VOA慢速英语(二)月

Acid Attacks Continue in Cambodia Despite Harsher Punishments For Som Bunnarith, memories of the day acid violence changed his life forever are as vivid in his mind as the scars on his skin. When it splashed on me, it felt hot. It even burned through

发表于:2019-01-13 / 阅读(90) / 评论(0) 分类 VOA标准英语2012年(九月)

Pakistani Acid-Attack Victim Enjoys New Life in Texas After taking the oath of citizenship, Julie Aftab celebrated. I have waited eight-and-a-half years to hear those words, and those words mean so much to me, she said. Ten years ago, when she was 16

发表于:2019-01-13 / 阅读(81) / 评论(0) 分类 VOA标准英语2012年(八月)

The Egyptian village of Kafr Torky lies along the banks of the Nile, seemingly a world away from the passions that played out further north, in Cairo's Tahrir Square. Yet even in such a bucolic setting, the demonstrations and ultimate victory of the

发表于:2019-01-14 / 阅读(87) / 评论(0) 分类 VOA标准英语2011年(二月)

Use of Acid Attacks for Punishment Persists in Pakistan 巴基斯坦仍存在泼洒硫酸作为惩罚 Despite laws against acid attacks, the practice of pouring acid on men, women and children as a form of punishment continues in Pakistan. Two victim

发表于:2019-01-14 / 阅读(83) / 评论(0) 分类 VOA标准英语2014年(二月)

Magnetic Ring Used to Stop Acid Reflux Heartburn is usually linked to gastric acid that reaches the esophagus when a weak muscle does not close as it should after swallowing. When stomach juices back up into the esophagus, the acid can cause a burnin

发表于:2019-01-14 / 阅读(122) / 评论(0) 分类 VOA标准英语2013年(四月)

Folic Acid Supplements Shown To Reduce Risk Of Autism Green, leafy vegetables, fruits and nuts naturally contain folate, a B vitamin that helps the body make healthy new cells. Most pre-natal vitamins include folic acid because it protects against de

发表于:2019-01-14 / 阅读(116) / 评论(0) 分类 VOA标准英语2013年(四月)

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(168) / 评论(0) 分类 VOA常速英语2007年(十一月)

By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid

发表于:2019-01-16 / 阅读(149) / 评论(0) 分类 2007年VOA标准英语(六月)

On September 18th, all New Zealand bread was going to have folic acid added to it. However, now the government has decided to wait three years. New Zealand and Australia have an agreement about food standards. Australia is going to add folic acid to

发表于:2019-02-25 / 阅读(146) / 评论(0) 分类 新西兰英语
学英语单词
airplane signal
aliphatic compound
amputating ulcer
argicillin
Aschoff, Karl Albert Ludwig
back-translateds
beaks
benefit value
binaphthol
brittleness
bulk continuous filament
cambism
carotted
cervix columnae posterioris cervix cornus
cetane improver
cheese hard
Chevreuse
circular extension table
class chrysophyceaes
corn-baby
cross-connection
dead metal region
diffuse origin
dividing up state owned assets
double grip
double strut insulator
egg moulding
epoca
far defence with attack
friction welding
frontal lobe
general arrangement of engine room
genus Cucurbita
germinal mutation
grain skeleton
half closed
have sb. at one's beck and call
head pulley
heat-exchangers of the plate type
high heat flux material
hydeia
icosahedron virus
infinite impulse response (iir)
jib foot
kelvin tube
lazos
legis.
life members
lifting catch
lowest-quality
Matteuccia struthiopteris
maunoir
measuring needle
mercaptoquinolinate
miscleaving
motional feedback amplifier
multiple wavelength laser
neffe
Neznanovo
ngv
noncreep
out at heel
pardonest
pearson product - moment correlation
pentadine
PEP (program evaluation procedure)
polarization optical ethods
power plant car trainset
prerogatives
project lending
R-gene
Rio Prêto, Cachoeira do
river otter
runner of edge mill
Saignes
sarcostin
scanning agent
self-reacting device
Shwegyin
silicon carbide particle reinforcement
slowing material
source processing
sousings
speed transforming gear
strut in borrowed plumes
superior ligament of epididymis
suspension packing
sweet-talked
thrombopenia
to take something amiss
toxinantitoxin
triaenophorid
Tsouic
ulcer of prepuce
ultimate apex
unit outage
unvulnered
valve rod
wills and probate department
workplace bargaining
zero suppressed scale