[土壤] 土壤抗冲性

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(92) / 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(105) / 评论(0) 分类 VOA2003(下)-农业与经济

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(78) / 评论(0) 分类 2011年VOA慢速英语(三)月

Lightning Helps Fertilize The Soil Our bodies need protein, and proteins contain nitrogen. The air we breathe has plenty of nitrogen to satisfy our needs. Butthat nitrogen is not available to us directly from the air. The only way we can get nitrogen

发表于:2018-12-31 / 阅读(58) / 评论(0) 分类 英语听力文摘 English Digest

How Rocks Appear In Your Garden I wonder how many of us went out this past spring to get our gardens ready for planting, smug in the thought that last year we got rid of all the rocks. Theres that nice big mound of them in the corner of the garden wh

发表于:2018-12-31 / 阅读(50) / 评论(0) 分类 英语听力文摘 English Digest

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(151) / 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(117) / 评论(0) 分类 VOA2004(上)--各类新闻

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(136) / 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(121) / 评论(0) 分类 VOA标准英语2012年(九月)

For those of us lucky enough to always have enough food and water, it may be hard to imagine living through a drought. A drought occurs for a variety of reasons, usually including a lack of rainfall and warm temperatures.Soil moisture severely dwindl

发表于:2019-01-26 / 阅读(86) / 评论(0) 分类 英语听力文摘 English Digest

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(99) / 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(157) / 评论(0) 分类 农业与发展

Drought For those of us lucky enough to always have enough food and water, it may be hard to imagine living through a drought . A drought occurs when for a variety of reasons, usually including a lack of rainfall and warm temperatures. Soil moisture

发表于:2019-02-16 / 阅读(49) / 评论(0) 分类 英语听力文摘 English Digest

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(112) / 评论(0) 分类 英文语法词汇

Topics: Ask an American: driving while texting; ground versus soil versus land; as such; pupil versus people Words: eyewitness report to lose control apparent median to clip to flip distraction visual to glance manual cognitive to take (ones) mind of

发表于:2019-02-23 / 阅读(58) / 评论(0) 分类 美语听力 English Cafe

Don: Hey, Yael, Have you heard? We've discovered two new oceans? Yael: Where? D: On Mars. Well, they aren't there any longer, but they were there a few billion years ago. Y: I thought scientists weren't sure if Mars had oceans or not. D: They weren't

发表于:2019-02-24 / 阅读(61) / 评论(0) 分类 英语听力文摘 English Digest

Toxin-loving Trees 树木能调节气候,保持生态平衡,树木通过光合作用,吸进二氧化碳,吐出氧气,使空气清洁,新鲜。一亩树林放出的氧气够65人呼吸一辈子。树还能防风固沙,涵养水土,吸收各种粉

发表于:2019-02-24 / 阅读(160) / 评论(0) 分类 英语听力文摘 English Digest

How Rocks Appear In Your Garden 岩石,是在地质作用下形成的矿物聚合体,其中海面下的岩石称为礁、暗礁及暗沙,由一种或多种矿物组成的,具有一定结构构造的集合体,也有少数包含有生物的遗骸

发表于:2019-02-24 / 阅读(80) / 评论(0) 分类 英语听力文摘 English Digest

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(115) / 评论(0) 分类 英文摇滚歌曲

Sugar bowls and hole 孔隙是岩土固体矿物颗粒间的空间。岩土中直径大于1毫米、重力水可于其中自由运动的孔隙,是大孔隙(macro-pore,large pore)。岩土中直径为0.01~1毫米、重力水和毛管水可存其

发表于:2019-03-09 / 阅读(106) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
aggregate sturcture
Aldous Huxley
Aleksandǔr Voynov
Allaben
alumochalcosiderite
angling for
Baker's feline pneumonitis virus
bardiche
bear-arms
bewig
black-and-white televisions
brachyesophagus
cedek
celebutante
chemistry classes
claritudes
connecting chain
contraction of casting
correction of continuity
Courvoisier's gallbladder
data direction register
digestive coefficient of feed
Dirian
do-jigger
double edge grooving saw
dumbbells
economy of large scale production
electric control dryer
electrooptic modulation
emergency transformer
emitter-emitter coupled logic
encrasicholina punctifer
endocymic
enseamed
fertilizer machinery
fire crackers
forging scale
four-sided glue spreader
fradimycin
gerdon
glenelg
grabke
Harv. L. Rev.
hiatis tendineus
hindered motion
holiday detector
IBM PS/2
indic.
institutional buyer
integer doubleword array
interaction index
into the wound
Isachne
kaliman
long-
machine center
macroscopically
matured interest payable
microphone preamplifier
motor
multigene
musicalizations
oblong
orogeny
orthoclase gabbro
Otriven
overdrive housing adapter plate
paper tube
piercing gun
plain snap gage
Platysomoidei
polarization cloud
postpalatal
press coverage
press head
pressure balance workover rig
price collusion
principal pollutant
pronator
queen's enemies
reduction with sodium amalgam
religieuses
religious organizations
reregulation
reversible chemical reaction
San Marino
SLE (static load error)
speeding up
sporoschisma mori
standard deviation
sticktion
stomodaeal nervous system
stoner-wohlfarth model
sural
switch-fuse
to behave badly
ultra-high power electric arc furnace
unclaused
volleyfire
wernerites
zener reference
zero-axis current