高腐有机土壤物质

Passage 21 Soils There are many different kinds of soils. Different soils have different types of rock and minerals in them than other. Some soils have more water in them than others. Some soils might have more plant and animal material in them, too

发表于:2018-11-30 / 阅读(230) / 评论(0) 分类 英语专业四级听写

AGRICULTURE REPORT - February 5, 2002: Soil Conservation Methods By Gary Garriott 04 Feb 2002, 18:39 UTC This is the VOA Special English Agriculture Report. Soil conservation efforts protect soil from

发表于:2018-12-07 / 阅读(119) / 评论(0) 分类 农业与发展

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(132) / 评论(0) 分类 VOA2003(下)-农业与经济

This is the VOA Special English Agriculture Report. Mulch is material spread over soil. It protects against wind and rain damage. It can also limit weed growth. Finding materials for organic mulch can be easy. Small pieces of tree bark or cut up lea

发表于:2018-12-07 / 阅读(63) / 评论(0) 分类 VOA慢速英语2009年(六)月

This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 Builders in developing countries are often not required to build strong buildings. So, when a disaster strikes, the damage is often widespread. 发展中

发表于:2018-12-07 / 阅读(106) / 评论(0) 分类 2011年VOA慢速英语(三)月

Prince Harry has arrived back in London after his Afganistan adventure This wasn't the day he expected or wanted to come back, but back he had to come and quickly. Along with 170 other soldiers flown back from Afghanistan. Prince Harry's return beca

发表于:2018-12-11 / 阅读(97) / 评论(0) 分类 万花筒2008年

Even the dirt on the ground is likely making climate change worse, a new study finds. Researchers have shown that warmer temperatures are heating the soil, which is causing microbes to become more active and release more of the soils carbon into the

发表于:2019-01-03 / 阅读(185) / 评论(0) 分类 2018年VOA慢速英语(八)月

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(145) / 评论(0) 分类 VOA2004(上)--各类新闻

Why mulching is one of the best things to do for plants. Transcript of radio broadcast: 14 July 2008 This is the VOA Special English Agriculture Report. Mulch is spread in a city park in Atlanta, Georgia Mulch is important to farmers. Mulch is a pro

发表于:2019-01-11 / 阅读(113) / 评论(0) 分类 VOA慢速英语2008年(七)月

This is the VOA Special English Agriculture Report. Spreading mulch Mulch is important to farmers. Mulch is a protective cover of material that is spread on top of soil. It is usually made out of organic material, like crop waste. Farmers may keep t

发表于:2019-01-11 / 阅读(115) / 评论(0) 分类 VOA慢速英语2007年(四)月

Agriculture Report - Feed the Soil, Feed the Crops This is the VOA Special English Agriculture Report. Studies show farmland in Africa is often lacking in important nutrients. But researchers say a combination of farming methods may help. Since the w

发表于:2019-01-12 / 阅读(164) / 评论(0) 分类 2012年VOA慢速英语(九)月

Feed the Soil, Feed the Crops If African farmers are going to feed the continent, they may first want to feed the soil. Studies show farmland is often depleted of vital nutrients. But researchers say a combination of organic farming methods may help.

发表于:2019-01-13 / 阅读(151) / 评论(0) 分类 VOA标准英语2012年(九月)

Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre

发表于:2019-01-14 / 阅读(135) / 评论(0) 分类 VOA标准英语2014年(二月)

Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h

发表于:2019-01-14 / 阅读(134) / 评论(0) 分类 VOA标准英语2014年(七月)

Pioneering Soil Researcher Wins Top Environment Prize Biologist Diana Wall went to the ends of the earth - the seemingly lifeless Antarctic desert - to study the life in soil. What soil life does for us, it provides us with many benefits that we don'

发表于:2019-01-14 / 阅读(101) / 评论(0) 分类 VOA标准英语2013年(四月)

AGRICULTURE REPORT - September 3, 2002: Mulch By George Grow This is Bill White with the VOA Special English AGRICULTURE REPORT. Mulching is one of the best things people can do for their plants. Mulc

发表于:2019-01-30 / 阅读(143) / 评论(0) 分类 农业与发展

AGRICULTURE REPORT - Cover Crops Are Good for the Soil (and the Farmer) By Mario Ritter Broadcast: Tuesday, May 24, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Cover crops are

发表于:2019-01-30 / 阅读(127) / 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(188) / 评论(0) 分类 农业与发展

Soil、earth、ground和land都可以表示地面,但这四个词的用法有很大的区别。一起来看看吧! soil意为:泥土、土壤,尤指生长植物的土地。或国家、国土。 The trees have rooted in the rich soil. 树木在肥

发表于:2019-02-18 / 阅读(139) / 评论(0) 分类 英文语法词汇

time will not stand still today is the day, the day of salvation living for more than just synthetic force fed existence this is my disposition I will strive for the truth time will not stand still today is the day, the day of salvation living for mo

发表于:2019-03-02 / 阅读(147) / 评论(0) 分类 英文摇滚歌曲
学英语单词
abyssal-benthic zone
allanerly
Altingia obovata
amika
anode potential stabilization
antiligh nucleus
argeinite
as stupid as an owl
as things run
astp
B-DNA
basic electric steel
be directed towards
bead wire
borinages
buttonholes
Calonerteria
cape-fear
captionable
carriboos
central control(cc)
Cercidiphyllaceae
clearing dollar
coherence bandwidth
common lint
concert of nations
doomsday scenario
dozes
dual-capable forces
endurable pressure
factor affecting
fiber reinforced plastics(frp)
fiveway
fixed radix system
flange drum
flare voltage
fly-fisherman
Fort Franklin
genus Alouatta
genus spirulas
gone off with
group switching center
guanosine diphosphate mannose
Hamilton, Lady Emma
heat-sensitive automatic circuit-breaker
heterogeneous competition
heterophobes
inertial control
intentional conduct
interpretacin
inulin clearance tests
Isidore
Judaic
Kankossa
katsumata
line-type cracking
lower specification limit
marketing opportunity
maximum receive unit
Mayologist
minimal polynomials
Mlles
much still less
multi-emitter transistor
multiparametric
multiplexing technique
needle beam
nigrification
nitrogen micro-determination apparatus
oppitz
paddle-shapeds
pamirica
peer nomination
phenyl phosphate
photoemissive detector
planeticose
postplaying
print field
professional-quality
psychotic disorder
registration pin
rhodium hydroxide
roof curb
screw up discipline
Senors
settlement gauge
slotted fillister head screw
Solresol
spontaneous cure
spot mark
stay bolt shank
supersonic welding
supplier appraisal
through-type
tracking subsystem
transient oscillogram
transport work ticket
traveled along
under-degreed
upbraiding
VFR approach