滴添加物,滴液添加剂

Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations The waning years advances in computer hardware and software, mechanical devices, sensors and artificial intelligence brought the world another step closer to the robotic future. Electric cars

发表于:2018-11-29 / 阅读(136) / 评论(0) 分类 VOA标准英语2015年(十二月)

Sneeze and cough particles form a cloud whose turbulence pulls in surrounding air, which allows the goop to maintain buoyancy and move farther than expected. Cynthia Graber reports. Gordon: When you have to sneeze or cough, do it into the bend of you

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 英伦广角

This is Scientific Americans' 60-Second Science. I'm Chelsea Wald. Got a minute? Vinaigrette dressing: when you shake it little vinegar droplets scatter through the oil, but when you put it down, the droplets merge and the dressing separates. That's

发表于:2019-01-08 / 阅读(77) / 评论(0) 分类 Scientific American(二)月

Cavers Explore Mysterious Hidden Wonders Caves have a subconscious hold on our imaginations - for our ancestors, they were not just shelter from the elements but also symbols of the womb, gateways to the underworld, places of wonder and mystery. Not

发表于:2019-01-09 / 阅读(78) / 评论(0) 分类 VOA标准英语2011年(八月)

This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav

发表于:2019-01-11 / 阅读(74) / 评论(0) 分类 VOA慢速英语2007年(十)月

AS IT IS 2015-08-12 Thai Treat is a Sweet Bite of History 泰国美味甜品的历史 The Chao Phraya River is an important part of daily life in Thailand. The Chao Phraya flows through Bangkok on its way to the Gulf of Thailand. Years ago, many immi

发表于:2019-01-12 / 阅读(81) / 评论(0) 分类 2015年VOA慢速英语(八)月

Dallas Attacks West Nile Virus by Land, Air The aerial and ground fumigation programs are blanketing around 1,400 square kilometers of the county, but don't target all mosquitoes. Laura McGowan, who works with Clarke, the company contracted to carry

发表于:2019-01-13 / 阅读(71) / 评论(0) 分类 VOA标准英语2012年(八月)

Ben Carter Powdered material called dry water, could provide a new way to store carbon dioxide in an effort to fight global warming. Dry water looks a lot like fine white sand, which isn't surprising since what makes it dry is that each tiny water dr

发表于:2019-01-14 / 阅读(106) / 评论(0) 分类 VOA标准英语2010年(九)月

Fact: liquid water is heavier than air. Fact: clouds, which consist of water droplets and ice crystals, seem to hover in the air. One final fact: the water droplets in a typical cloud together weigh many tons. Which raises a question: how do clouds s

发表于:2019-01-22 / 阅读(171) / 评论(0) 分类 英语时差8,16

Cleaning and sorting plastic made out of multiple polymers can be relatively expensive, 清理和将多种聚合物制成的塑料进行分类的成本相对昂贵, especially if it is used to make low value products such as packaging. 尤其是这些

发表于:2019-01-26 / 阅读(102) / 评论(0) 分类 经济学人科技系列

一次咳嗽会产生2万个病毒 The next time you cough or sneeze, there is good reason to cover your mouth. As many as 20,000 viruses are expelled in an average cough, which may be sufficient to infect many people - particularly those who are not

发表于:2019-02-05 / 阅读(97) / 评论(0) 分类 实用英语

BEIJING, Jan. 25 (Xinhua) -- China has set a goal of equipping at least half of the country's county-level administrative regions to monitor various contaminants and harmful ingredients in food by the end of 2013. A new work plan, released on Friday

发表于:2019-02-06 / 阅读(94) / 评论(0) 分类 英语新闻

Like its name suggests, the ice cream banana is sweet with undeniable hints of vanilla and its skin even appears frosted, starting out as a bluish-green color before it ripens. 看名字就知道,雪糕香蕉应该是很甜的,绝对会散发淡淡

发表于:2019-02-06 / 阅读(129) / 评论(0) 分类 阅读空间

The revised laws will include much stronger civil, administrative and criminal penalties for both offenders and their supervisors. Those who violate the new food safety laws will face fines of up to 30 times the value of their products. The current p

发表于:2019-02-13 / 阅读(115) / 评论(0) 分类 英语新闻

The Ministry of Education and the John Tung Foundation recently sponsored a two-week camp for underweight and overweight children from grades three through six. Nutritionists taught the students about sugar and grease content in a variety of foods, a

发表于:2019-02-16 / 阅读(60) / 评论(0) 分类 英语听力文摘 English Digest

Metal, heal thyself 金属,自己愈合吧 Materials science: Researchers have devised an ingenious way for the damaged surfaces of metals to repair themselves when they come to harm 材料科学:研究人员构想出了一种新颖独特的方法,

发表于:2019-02-17 / 阅读(94) / 评论(0) 分类 经济学人综合

His main work done, Patterson now turned his attention to the nagging question of all that lead in the atmosphere. He was astounded to find that what little was known about the effects of lead on humans was almost invariably wrong or misleadingand no

发表于:2019-02-17 / 阅读(56) / 评论(0) 分类 万物简史

Six New Year's Resolutions Getting healthy need not be overwhelming. Here are six simple, straightforward ways to get on track toward optimum health in the new year. 1. Post It On the Fridge! Adopt the Anti-Inflammatory Diet The anti-inflammatory die

发表于:2019-02-17 / 阅读(99) / 评论(0) 分类 阅读空间

What's more, I've detected those falling and rising currents that make up the ocean's true breathing. 此外,我又注意过那些由上而下和由下而上的水流,形成真正的海洋呼吸作用。 I've seen a molecule of salt water heat up

发表于:2019-02-25 / 阅读(68) / 评论(0) 分类 《海底两万里》中英双语有声读物

They absorb the marine salts, they assimilate the solid elements in the water, 它们吸收了海中的盐,消化了水中的固体物质, and since they create coral and madrepores, they're the true builders of limestone continents! 它们是真正

发表于:2019-02-25 / 阅读(70) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
adjustable-range thermometer
administration action
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Allium chiwui
an increasing number of
anchoring fibrils
antiaircraft fires
antierotica
atmospherium
autoreinfusion
avant-garage
avicennias
backa topola
be said to
bioconverts
bumfluff
capping inversion
Carlos the Jackal
chemies
choked runner system
compulsory delisting
Congo River
cooperative binding
counter-coups
cudgeller
customs-union
cystic artery
Dalchonzie
Danic
deficit-neutral
dogooders
Doisy unit
drapetis xanthocephala
dry cooling systems
ecovillage
Eritrichium deltodentum
Euonymus oblongifolius
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fibrocellulitis progressiva ossificans
foxbases
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Gempylus serpens
genus callistephuss
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husbander
icahn
ignite
imperfect manufacture
imperfectcontact
Indirect Exchange Rate
indulinophil
jelly roll mortons
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Kavīr, Dasht-e
lensia meteori
Leptaena
line of gab
lippy
loading and unloading berth
Massora
net adjustment
nitrosaccharin
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obliqus arytenoid muscle
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onthophagus (onthophagiellus) taiyaruensis
oxytactic
parotitis phlegmonosa
parydra formosana
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sea-duck
securities held in pledge
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Small Eid
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