土壤水分毛细上升

Agriculture Report - UN Says Food Production Must Rise; How 'Fertilizer Trees' Could Help 农业报道 - 联合国称到2050年粮食产量必须增加7成 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道

发表于:2018-12-07 / 阅读(188) / 评论(0) 分类 2011年VOA慢速英语(十一)月

Agriculture Report - Getting to the Root of How to Water Trees This is the VOA Special English Agriculture Report. Some trees can survive a long time without water. Think of trees that grow in the desert. But other trees may need more moisture than t

发表于:2018-12-07 / 阅读(194) / 评论(0) 分类 2011年VOA慢速英语(八)月

Asian Bacteria Threatens Florida Orange Trees 亚洲细菌威胁到佛罗里达橘子树 Florida's citrus fruit industry is facing a serious threat from a bacteria carried by an Asian insect. The widespread infestation again highlights the danger of

发表于:2018-12-08 / 阅读(127) / 评论(0) 分类 VOA标准英语2014年(八月)

Computer scientist Shwetak Patel and his team are developing new sensing systems. The initial focus was really around energy and water monitoring.They built a new generation of smart sensors that monitor electronic interference on a homes power line

发表于:2018-12-08 / 阅读(105) / 评论(0) 分类 VOA标准英语2018年(六月)

Some cacti, like the saguaro, grow to tree size, but true trees need more moisture than most desert environments can supply, so they are scarce on deserts. 一些仙人掌,如撒瓜罗,能长到橡树那么高。但真正的树却需要比大多数

发表于:2018-12-27 / 阅读(144) / 评论(0) 分类 英语听力小短文走遍全世界

Epidermal growth factor - a cytokine that stimulates epithelial cell proliferation. Epinephrine - a neurotransmitter substance found at all adrenergic synapses (nor epinephrine or epinephrine). It is

发表于:2019-01-03 / 阅读(195) / 评论(0) 分类 医务英语

Inflammation - is a whole complex of events which occur in sequence, in response to injury. Tissue damaged by bacteria, chemicals, heat, trauma etc, release histamine and bradykinin and serotonin whic

发表于:2019-01-03 / 阅读(160) / 评论(0) 分类 医务英语

Basal lamina - a term used to describe the different layers which make up the basement membrane. These different layers of the basement membrane, the lamina lucida and lamina densa are only visible wi

发表于:2019-01-03 / 阅读(176) / 评论(0) 分类 医务英语

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(183) / 评论(0) 分类 VOA2004(上)--各类新闻

head 头 throat 喉咙,咽喉 armpit hair 腋毛 nipple 乳头 chest 胸部 pit 胸口 navel 肚脐 abdomen 腹部 private parts 阴部 thigh 大腿 neck 脖子 shoulder 肩 back 背 waist 腰 hip 臀

发表于:2019-01-05 / 阅读(177) / 评论(0) 分类 英文语法词汇

亚洲细菌威胁佛州橘树 Florida's citrus fruit industry is facing a serious threat from a bacteria carried by an Asian insect. The widespread infestation again highlights the danger of transferring non-native species to American soil. 佛罗里达

发表于:2019-01-19 / 阅读(129) / 评论(0) 分类 VOA双语新闻 2014年9月

It's similiar to a pregnancy test: a drop of liquid on a strip of paper causes an easily seen color change. But imagine that kind of simple, cheap technology employed in testing for pollution or health issues anywhere and on the cheap. Researchers at

发表于:2019-01-20 / 阅读(146) / 评论(0) 分类 Scientific American(八)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(139) / 评论(0) 分类 英语听力文摘 English Digest

We all make resolutions every year to keep fit whether we have diabetes or not. The difference is that as people with diabetes, we need to keep fit, and we know that even if we don't do anything about it. One only has to read the medical abstracts an

发表于:2019-02-03 / 阅读(228) / 评论(0) 分类 实用英语

护士:早上好! Nurse: Good morning. 病人:你好! Patient: Good morning. 护士:请问哪里不舒服? Nurse: What seems to be the problem? 病人:高烧,感觉糟透了。 Patient: Im running a high fever and feeling terribly bad. 护士:这种情况出现有多久了? Nurse

发表于:2019-02-06 / 阅读(143) / 评论(0) 分类 英文语法词汇

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(105) / 评论(0) 分类 英语听力文摘 English Digest

听歌学英语:All Rise全体肃立 [00:16.68]BLUE [00:18.55]All Rise [00:59.78]Yo, yo [01:00.31]Yo, yo [01:02.13]Your honour please [01:03.78]Gotta believe what I say (say) [01:06.77]What I will tell (tell) [01:08.66]Happened just the other day (da

发表于:2019-02-18 / 阅读(149) / 评论(0) 分类 听歌学英语

只要讲英语就会用得上的词汇 闪光之说: 1、shine: 照耀,指光稳定发射; 2、glitter: 闪光,指光不稳定发射; 3、glare: 耀眼,表示光的强度最大; 4、sparkle:闪烁,指发射微细的光度。 打破之说

发表于:2019-02-21 / 阅读(126) / 评论(0) 分类 实用英语

Plants in the Deserts Some cacti, like the saguaro, grow to tree size, but true trees need more moisture than most desert environments can supply, so they are scarce on deserts. Close to streambeds, cottonwoods can sometimes be found. Though these st

发表于:2019-02-25 / 阅读(120) / 评论(0) 分类 双语有声阅读

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(171) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
adjutant birds
air inhibition
Anel's probe
anomalurid
anterior process
arthraxon lancifolius
baronda hill
beament
bending resistance
binder flour
buttonmaking
card deck input
carenyl
catarrhal inflammation
centrifugal inertia governor
chemical polish
chievances
chloromycetin
close-ranges
COMDRARGP
complex Stiefel manifold
concentric tubing
convexified
diazophenylthio paper
doppler ultrasound
Doxantrazole
driven caisson
elands
electrophilic
electrotechnician
error probability amplificaton factor
Eucalyptus amygdalina
external resource
ferrolite
financial news
finger rafting
finished market product
full automatic transmission
G-layer
gelatinous marrow
genus felicias
gunnin' it
homogeneity of correlation coefficient
hydantol
hyperbaric lifeboat
identific
ill will
in one's own way
inorganic sera
Intercalatus
interest sb in
interpretative petrology
inyoated
Kanuku Mts.
L-Triiodothyronine
letterform
lots and lots of
marioni
Marlhes
medicament form
microwave channel noise
minty note
morifolium
Needham, Joseph
nobody else
nonlinear scanning
observent density
on the books
on the television
Orthopteroidea
pce.
pectin substance
penelope
principal axis of symmetry
pronominal
reappropriating
reshave
rouergues
ruddy
rule of grammar
sending voltage
signal push button
sinuose
spindle with collars
steam jacket kettle
Stomach Collateral
strategic and critical raw material
Tetas, Pta.
Theloschistaceae
thin film oven test
thinspiration
tipped-over
tranch method of under-water tunnel construction
trid-ont conditioned reflex
upper radial
upward advance
urogenital systems
viola betoniefolia ssp.nepalensis w.beck.
weight-set tester
whinily
wire-armored cable
Wometin