氧化铅视像管

When you picture ancient Egyptian beauties such as Queen Nefertiti or Cleopatra, theyre probably wearing dramatic black eyeliner. Ancient Egyptians believed that eye makeup had properties bestowed by the gods that protected the wearers from illness.

发表于:2018-12-24 / 阅读(103) / 评论(0) 分类 Scientific American(一)月

AGRICULTURE REPORT - Carbon Trading: How the Chicago Climate Exchange WorksBy Mario Ritter Broadcast: Tuesday, May 30, 2006 I'm Shep O'Neal with the VOA Special English Agriculture Report. Agriculture

发表于:2019-01-02 / 阅读(111) / 评论(0) 分类 2006年慢速英语(五)月

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d

发表于:2019-01-08 / 阅读(155) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(154) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Adam Hinterthuer. Got a minute? Heres a possible blood pressure remedy. But its only for those who can stand the heat. Its capsaicin, the active ingredient in peppers like habaneros that should pro

发表于:2019-01-08 / 阅读(160) / 评论(0) 分类 Scientific American(八)月

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 Scientific American(四)月

SCIENCE IN THE NEWS - Discovery That Stored Blood Loses a Life-Saving Gas Could Solve Mystery By Lawan Davis, Soo Jee Han and Caty Weaver / Broadcast: Mon, 12 Nov 2007 16:00:00 UTC VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm S

发表于:2019-01-11 / 阅读(188) / 评论(0) 分类 VOA慢速英语2007年(十一)月

Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种,每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么

发表于:2019-01-17 / 阅读(138) / 评论(0) 分类 TED演讲教育篇

电脑英语--常见硬件篇 CPU:Central Processing Unit,中央处理单元,又叫中央处理器或微处理器,被喻为电脑的心脏。 RAM:Random Access Memory,随机存储器,即人们常说的内存。 ROM:Read-Only Memory,

发表于:2019-01-26 / 阅读(120) / 评论(0) 分类 实用英语

In the early 1800s there arose in England a fashion for inhaling nitrous oxide, or laughing gas, after it was discovered that its use was attended by a highly pleasurable thrilling. For the next half century it would be the drug of choice for young p

发表于:2019-01-29 / 阅读(91) / 评论(0) 分类 万物简史

Beijing's last large coal-fired power plant suspended operations last Saturday, meaning the capital has become China's first city with all its power plants fueled by clean energy. 上周六,北京最后一座大型燃煤电厂停机备用,这意味

发表于:2019-02-04 / 阅读(104) / 评论(0) 分类 英语新闻

18招促环保(双语) 我们中的每个人都应该对自己日常生活活动和选择所产生的温室气体负责。因此,防止气候变化需要地球上的每个人共同来努力。在中国,平均每户每年的碳排放量是2.41吨

发表于:2019-02-06 / 阅读(200) / 评论(0) 分类 实用英语

BEIJING, July 11 (Xinhua) -- The State Council, or China's Cabinet, announced on Wednesday that it will boost the development of the nation's distribution industry with the goal of establishing a modern goods distribution system that is efficient, co

发表于:2019-02-08 / 阅读(150) / 评论(0) 分类 英语新闻

Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的

发表于:2019-02-13 / 阅读(198) / 评论(0) 分类 英语新闻

China's State of the Environment Report for 2012 suggests that the overall quality of China's environment is balanced and stable. The condition of underground water remains to be a big concern. Li Dong has the details. Released annually by China's Mi

发表于:2019-02-14 / 阅读(240) / 评论(0) 分类 世界各地新闻集锦

电脑英语--常见硬件篇CPU:Central Processing Unit,中央处理单元,又叫中央处理器或微处理器,被喻为电脑的心脏。 RAM:Random Access Memory,随机存储器,即人们常说的内存。 ROM:Read-Only Memory,只

发表于:2019-02-15 / 阅读(147) / 评论(0) 分类 天天商务口语

重要电脑英语及其缩写 CPU:Central Processing Unit,中央处理单元,又叫中央处理器或微处理器,被喻为电脑的心脏。 RAM:Random Access Memory,随机存储器,即人们常说的内存。 ROM:Read-Only Memory,

发表于:2019-02-16 / 阅读(110) / 评论(0) 分类 实用英语

The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in

发表于:2019-02-17 / 阅读(124) / 评论(0) 分类 英语新闻

CPU:Central Processing Unit,中央处理单元,又叫中央处理器或微处理器,被喻为电脑的心脏。 RAM:Random Access Memory,随机存储器,即人们常说的内存。 ROM:Read-Only Memory,只读存储器。 EDO:Ext

发表于:2019-02-21 / 阅读(100) / 评论(0) 分类 实用英语

18 The Bounding Main 第十八章 浩瀚的海洋 Imagine trying to live in a world dominated by dihydrogen oxide, 请你想像一下,你能不能生活在一个由一氧化二氢主宰的世界里。 a compound that has no taste or smell and is so

发表于:2019-02-25 / 阅读(177) / 评论(0) 分类 万物简史
学英语单词
acceleration transducers
acrylyl
adjustable-resistance
airplane rig
antidazzle
applications programme
artium baccalaureus
ascaridia columbae galli
B.f.s.l
brachers
carry a bone in her mouth
cassiterotantalite
catwort
central nervous nuclei
chemifold
ciardis
cochi
condimental
Dickeyville
diphenyl disulfide
disk-spray process
double contact wire system
double rotary engine
duck-legged
dunnaging
Echarri
ecoanarchist
ectotrophous
emission limit
error free signal message
fire stop for bunched cables
flat twist drill
fur color
genus hippotraguss
hemagglutinating encephalomyelitis
high intensity cold light supply
hopi summer ritual
integral governor
Isachne hoi
low-bed trailer
market targeting
mcleman
medullary plate (or neural plate)
metal matrix composite reinforcement preparation method
modders
monodispersive system
navigation agent
Newberry County
non-vascular
nonequidistant limits
one-sixty
operational research of management science
operational variable
Pars vertebralis
patristically
pattern shuttle
Paulatuk
Phellinus
pig's eye
pink aggregate
podiatry
port plate axial piston pump
powdered egg yolk
pretulite
Prix de Rome
psococerastis capitata
radical cation
Rayer's disease
RE-ED
recognizing machine
reedsport
rodiers
rubber corrugated rim loudspeaker
russets
Salix metaglauca
semibrachiation
sencillo
siddon
small-scale peasant economy
sodium chloride spring
southern winter seasonal zone
spatial motion
spontaneous subluxation of cervical vertebra
ST_calm-and-quiet_peaceful-and-tranquil
standing aside
starboarding
syllabaria
Telford pavement
thaches
thorough-stone
toad rushes
Triarthrus
under my belt
under-achievers
upper jaw bone
wandering dermoid
weather bow
whenceward
wissh
within-child
working-hours method of depreciation
xerocheilia