拓扑形变

Computer Simulations Might Predict Future Earthquakes 电脑模拟能够预测未来地震 Geologists say they knew a large earthquake was coming in South Asia, but they did not know when. The Himalay

发表于:2018-12-08 / 阅读(224) / 评论(0) 分类 VOA2005(下)--环境科学探索

Leading the news this morning It seems Labor's woes aren't only confined to Queensland.The latest news poll shows the gap between the two parties preferred vote has widened to 14,with coalition sitting on 57%.The ALP's primary vote has slipped three

发表于:2018-12-11 / 阅读(179) / 评论(0) 分类 澳洲ABC新闻快递2012年

I'm John Berman, sitting in for *, welcome to the 360 podcast. Convicted of trying to kill three people but not actually killing a fourth. Michael Doug raise a justice. Let's get started. It was a shocking crime. It started as a disagreement over lou

发表于:2018-12-19 / 阅读(189) / 评论(0) 分类 CNN2014年(二)月

Every two weeks, on the full and new moons, the sun, moon and Earth fall along a nearly straight line. The combination of gravitational forces in this arrangement creates large swings in the tides. But the celestial alignment affects more than the oc

发表于:2018-12-24 / 阅读(201) / 评论(0) 分类 2016年Scientific American(九)月

...Africa. The African plate has been drifting north over millions of years. And when it pushes against the European plate, huge fold s of rock have been forced up and over one another into great moun

发表于:2019-01-02 / 阅读(287) / 评论(0) 分类 欧洲自然写真

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Bats see with their ears, which are highly attuned to pick up minute variations in the reflection of the sound pulses they use to echolocate. Here are so

发表于:2019-01-08 / 阅读(249) / 评论(0) 分类 Scientific American(十二)月

By Gilbert da Costa Abuja 27 June 2006 Lawal Manesara who is a polio victim rides on a skate board along a street of Lagos, Nigeria Nigeria is to launch an ambitious immunization strategy to halt the spread of polio in Africa's most populous country

发表于:2019-01-13 / 阅读(260) / 评论(0) 分类 2006年VOA标准英语(六月)

The deputy head of Ingushetia's Supreme Court has been shot dead in the latest incident of violence to hit Russia's troubled Caucasus region. The assassination of Justice Aza Gazgireeva follows a recent high profile killing in neighboring Dagestan,

发表于:2019-01-13 / 阅读(188) / 评论(0) 分类 VOA标准英语2009年(六月)

A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti

发表于:2019-01-14 / 阅读(209) / 评论(0) 分类 VOA标准英语2010年(十)月

This is Scientific Americans 60-Second Science. I am Christopher itagliata. Got a minute? How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Mil

发表于:2019-01-20 / 阅读(219) / 评论(0) 分类 2014年Scientific American(八)月

How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Milky Way was twice as massive as Andromeda. A 2009 estimate evened the score, calculating th

发表于:2019-01-20 / 阅读(197) / 评论(0) 分类 2014年Scientific American(八)月

How heavy is the Milky Way in comparison to its neighbor galaxy, Andromeda? Well, depends how you calculate it. In 2006 one group of astronomers figured the Milky Way was twice as massive as Andromeda. A 2009 estimate evened the score, calculating th

发表于:2019-01-20 / 阅读(205) / 评论(0) 分类 2014年Scientific American(八)月

拓扑排序 topological sort 偏序 partical order 拓扑有序 topological order AOV网 activity on vertex network AOE网 activity on edge network 关键路径 critical path 匹配 matching 最大匹配

发表于:2019-02-01 / 阅读(200) / 评论(0) 分类 实用英语

1. Russians 1、俄罗斯人 Scientists still cannot agree on their origins and answer the question when Russians became Russian. The ancestry of Russians were sought among Normans, Scythians, and Sarmatians, and even the South Siberian Usuns. 俄罗斯

发表于:2019-02-01 / 阅读(176) / 评论(0) 分类 阅读空间

By Paul Sisco Washington, DC 15 February 2008 Scientists have started analyzing data and images acquired when the Messenger space probe passed within 200 kilometers of the planet Mercury last month. It was the first flyby of the solar system's inner-

发表于:2019-02-06 / 阅读(262) / 评论(0) 分类 VOA常速英语2008年(二月)

The Zika virus outbreak in Latin America could be a bigger threat to global health than the Ebola epidemic that killed more than 11,000 people in Africa. That's according to several public health experts who spoke with the Guardian and Examiner newsp

发表于:2019-02-08 / 阅读(214) / 评论(0) 分类 英语新闻

质量合格证书 certification of fitness 原材料 raw material 底板 bottom plate 垫层 cushion 侧壁 sidewall 中心线center line 条形基础 strip footing 附件 accessories 型钢 profile steel 钢板 steel plate 熔渣 slag 飞溅 weldin

发表于:2019-02-15 / 阅读(267) / 评论(0) 分类 实用英语

本期内容: The World Health Organisation warned that Zika, a mosquito-borne virus linked to brain deformation in human fetuses, is likely to spread to every country in the Americas except Canada and Chile. Brazil has reported 3,893 cases of micr

发表于:2019-02-20 / 阅读(194) / 评论(0) 分类 夏说英语新闻晨读

英语单词快速记忆法丛书(2)

发表于:2019-02-26 / 阅读(565) / 评论(0) 分类 英文语法词汇
学英语单词
a feast of eyes
affricke bird
airguns
antihyperglycemic
arca avellana
Arthricocephalites
automated operations network
axiomatic Smatrix theory
basilisk glance,basilisk-glance
be at a loss
beating off
birostris
bleeded
Bodφ
carrus
colony stimulating factor
common fate
compounding agent of rubber
concrete structures
corrugata
cross-development
cryptic suture zone
Ctrl G
deindividuated
derotational
diddikais
dietitian
double beam crane
double bowed callipers
El Manteco
evaporative type cooler
experimental gerontology
ferrite-core storage
feruling
Fischbacher Alpen
flux flattening material
fresnal directional screen
front tool
furnace coolin
fussbudgets
good condition of vehicle
half value depth
hematoporpbyrin
high temperature superconductor
high-culture
high-speed disconnecting switch
Hososhima
hyperon-hyperon interaction
hysterotrachelotome
inoculist
isospin state
Jacketedautoclav
law.com
lawful tender
lillychina
Liponyssus
magnetic declination
malalinement
measuring data
memory based
mercury vapour lamp
mesican
metacresalol
metzgeria consanguinea schiffn.
monocontrol
multipoint microwave distribution system
neo-hombreol
neutrodon
nominal decline rate
notional insanity
Omulyakhskaya Guba
oxalic ester
phaeopera
phonologic system
pineaoole peeler-corer
pleustonic
powerlessness
predormitium
presidential electors
probatic
pyoluene
quayl
reactive flavine
record control system
redemonstrate
Romer method
saberteeth
secret coding
sequential fuel injection system
short of something
simple object
slag inclusions
succinylcholine iodide
teachy
three-terminal standard resistor
tweedledum
uluss
Voronoi diagram
water opening
wet point
Winslow Homer
Yong-ni