乙羟纤维素

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(192) / 评论(0) 分类 2014年VOA慢速英语(五)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(144) / 评论(0) 分类 VOA双语新闻 2014年1月

Don: Time to go again to the A Moment of Science mailbag. Yal: A listener writes: Dear A Moment of Science, Scientists know that one day we'll run out of oil and other natural sources of energy. Beyond solar power and wind power and ethanol, what are

发表于:2018-12-27 / 阅读(136) / 评论(0) 分类 英语时差8,16

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(138) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo

发表于:2019-01-08 / 阅读(167) / 评论(0) 分类 Scientific American(五)月

Scientists in Brazil are turning fruit fibers into car parts. At a recent meeting of the American Chemical Society, the researchers described their work in making the next generation of automotive parts made from natural fibers from bananas, pineappl

发表于:2019-01-09 / 阅读(148) / 评论(0) 分类 VOA标准英语2011年(四月)

Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2014年VOA慢速英语(九)月

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(175) / 评论(0) 分类 VOA标准英语2012年(三月)

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(149) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(115) / 评论(0) 分类 白领英语晨读

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(133) / 评论(0) 分类 英语新闻

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(144) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(158) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(161) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(177) / 评论(0) 分类 TED演讲教育篇

台湾籍旅美老师今天交给我们的句子是: It's not rocket science: Focus on lean protein, healthy fats and non-processed, unrefined carbohydrates such as vegetables, beans, whole grains and fruit. 这不难懂:多摄取低脂肉类、健

发表于:2019-02-22 / 阅读(152) / 评论(0) 分类 留美老师带你每日说英文
学英语单词
abnormal time
Actimmune
angel dust
angulas
area search
Augmented Roman,augmented roman
autoradiograghic analysis
azimuthange indicator
Berville
bleareyedness
boracite
brauns
brimborions
bruewald
budget model
Burrow.
cell lethal mutant
cementhead
cheese-cake
closing-times
Clostridium fissum
Coddenham
computer aided part programming
congs
data terminal equipment (dte)
defatting
desoxymethyltestosterone
dichroic mirror
dipetalonema viteae
disoccupy
double-headed spike
drift corrected amplifier
drm-free
dry mass
dyne centimeter
edge sealing
efficient score
engine cut-off test
failure diagnosis time
fayol
filmed
finger chute
Finniss R.
fluid pressure reducing valve
fruit texture
garage wine
Geranium donianum
gravity residual
guipp
hall-of-famer
high-molecular coagulant
home lot
ill humo(u)r
intraglacial
iron deposit
isoazimuth
JCTN
kiddywinky
kreiss
krkas
large computer project
lymphonoduli aggregati (intestini coli)
mahogany acid
melanotic scirrhus
mercury cushion
misguesses
mucous crypts of duodenum
non-agency
oscillator
packing non-uniforming factor
Pan-German
partial analysis
pavla
pebble-bed rheological behavio(u)r
percentage grading
pin cherries
pitch laddle
positive electrical charge
rare species
rice paddy herb
ring oiling
RPR (read printer)
Scandinavian languages
semen biotae
shop assistent
slinger head
spotted cranesbills
Streicher
strip-poker
thalassiothrix mediterranea
Tiguézéfene
time limit method
tiraspol
to tug
townends
toxicol.
two-stage amplifier
United States International Trade Commission
unnooked
utricularia vulgaris l.
vaporization nucleus
without reservation