电子束精炼

Each year, millions of people visit the 4,570-meter-high Baishui Glacier in southern China. Scientists say it is one of the worlds fastest-melting glaciers. The huge body of ice is in the southeastern edge of a Central Asian region called the Third P

发表于:2018-12-08 / 阅读(82) / 评论(0) 分类 2018年VOA慢速英语(十)月

Life Is A Test 人生是一场考试 It makes for a lot of stress, and we tend to feel that there will be more hard lessons in life。 这是个让人充满压力的比喻,我们时常感觉人生就是一个不断面临各种课题的过程。 Lif

发表于:2018-12-18 / 阅读(75) / 评论(0) 分类 英语美文

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(100) / 评论(0) 分类 不择手段背单词

ENVIRONMENT REPORT - November 15, 2002: Snow Melting on Mount Kilimanjaro By Cynthia Kirk This is the VOA Special English ENVIRONMENT REPORT. A new study says ancient snow on top of Mount Kilimanjaro

发表于:2019-01-02 / 阅读(106) / 评论(0) 分类 健康与环境

By Paul Sisco Washington, DC 24 May 2006 watch Melting Poles report NASA scientists, working with 10 years of satellite data, find a dramatic thinning of ice around the edges of Greenland, and Antarctica too. satellite view of earth Using satellite

发表于:2019-01-06 / 阅读(136) / 评论(0) 分类 2006年VOA标准英语(五月)

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 英美文化

This is the VOA Special English Development Report. The lack of clean drinking water is a major problem worldwide. The World Health Organization says more than one billion people live in areas where renewable water resources are not available. The pr

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2010年VOA慢速英语(四)月

This is the VOA Special English Health Report. An outbreak of cholera in Haiti continues to spread sickness and worry. Health officials are worried that the capital could suffer a major outbreak of the disease. So far most cases in Port-au-Prince hav

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2010年VOA慢速英语(十一)月

By Paul Sisco Washington, DC 26 July 2006 watch Water Purification report Villagers in Iraq are better off today, thanks in part to NASA engineers from the Marshall Space Center in America's deep south. ------- Concern for Kids is a non-profit organ

发表于:2019-01-12 / 阅读(127) / 评论(0) 分类 2006年VOA标准英语(七月)

Students Invent Water Purification Disc The lab operates like a kitchen. They add several ingredients. Then they mix, weigh, press and bake them. What's created is called a MadiDrop - a ceramic disc infused with silver. When dropped in water, silver

发表于:2019-01-14 / 阅读(74) / 评论(0) 分类 VOA标准英语2013年(六月)

Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如,美国开拓西部的过程给美国语言增添了不少色彩。可

发表于:2019-01-14 / 阅读(166) / 评论(0) 分类 美国习惯用语

12The Lord said to Moses, 2Say to the Israelites: 'A woman who becomes pregnant and gives birth to a son will be ceremonially unclean for seven days, just as she is unclean during her monthly period. 3On the eighth day the boy is to be circumcised. 4

发表于:2019-01-26 / 阅读(89) / 评论(0) 分类 利未记

By Paige Kollock Washington, DC 12 May 2006 watch Sustainability Expo report More than 350 students from 21 colleges and universities were on the National Mall in Washington D.C. this week to compete

发表于:2019-02-05 / 阅读(141) / 评论(0) 分类 2006年VOA标准英语(五月)

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(103) / 评论(0) 分类 实用英语

Background carrier 本底载流子 Background doping 本底掺杂 Backward 反向 Backward bias 反向偏置 Ballasting resistor 整流电阻 Ball bond 球形键合 Band 能带 Band gap 能带间隙 Ba

发表于:2019-02-05 / 阅读(93) / 评论(0) 分类 实用英语

Katia: So, Enam, let's talk about environmental problems of our countries. In Bangladesh, what is an environmental problem? Enam: Actually, we have a lot of environmental problems in Bangladesh but mainly I'd say the soil contamination is quite bad,

发表于:2019-02-05 / 阅读(88) / 评论(0) 分类 原版英语对话1000个

Katia: So, Enam, let's talk about environmental problems of our countries. In Bangladesh, what is an environmental problem? Enam: Actually, we have a lot of environmental problems in Bangladesh but mainly I'd say the soil contamination is quite bad,

发表于:2019-02-16 / 阅读(68) / 评论(0) 分类 英语趣味课堂

Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom

发表于:2019-02-17 / 阅读(68) / 评论(0) 分类 万物简史

Nearly 230,000 people affected by the earthquake in Yunnan have been relocated to safer areas. Longtoushan County is the worst-hit area. Two relocation sites were established there to accommodate victims. Works are now underway to repair dozens of wa

发表于:2019-02-18 / 阅读(111) / 评论(0) 分类 CCTV9英语新闻2014年08月

一台类似于公交站的城市空气净化装置,近日正式落户于清华大学,其将作为清华校车车站之一,接受北京空气的测试。 请看相关报道: An outdoor air purification system, an oxygen bar designed in the fo

发表于:2019-02-25 / 阅读(143) / 评论(0) 分类 英文语法词汇
学英语单词
4-Hydrobenzylamine
adenine hypoxanthine
anti-tamper
as a matter of course
atomic warfare
bang Banagher
bay port
be insensible of
be off at the nail
blanket-separation plant
capillary dipression
carpet latexing machine
chainrule
channel promotion
Chassahowitzka National Wildlife Refuge
Chediak reaction
chroma number
collation index
contraction gap
coverage strategy
credit-market
d.b.s
Darling Pen.
ecrus
even Stephen
face south
family Soricidae
film dosimetry
form of subscripts
Fritillaria yuminensis
Front Side bus
gameplays
gas-tungsten arc welding
German cockroach
give ... a look
Gubler's reaction
guzz
heat insulating layer
heteratomic
high-stability temperature variation meter
hull strength
Ikutha
Ilex robusta
improper disclosure of audit finding
indirect flows
indissolubility
ingot for forging
inside crankshaft
intower
isolation mean
Jālālpur
kernelization
kontrast
lakesides
laserable material
lead trinitro-resorcinate
leeland
level tendering
Libebe
limitation of legal proceedings
luxations
magnetic powder testing
Mastixia chinensis
medites
mid-band streaking
molten-cast refractory
moving-iron voltmeter
multidrop loop controller
nahl
non-reversible pallet
ortho-zinc arsenate
pallids
percutaneus
picture character
plaskett
poker faces
pozzuolite
pre-dialysis
prehistoric world
product proximity space
Qomolangma, Mount
quilting party
rack press
remote testing
scuttle cover
sexual exploitation
shibayama
sickbags
spacing support
strip feeding device
supporting force
take a chair
tayassuid
thesioides
threaded tree
tidswell
tooth enamel
transport plane
unfickle
verification system
WinPE
yellow-necked mice