油类残留物

Unit 1:Establishing trade relation. The following conversation is between Mr.Gatty, an importer from Britain, and Mr.Dong,a director of Liming Foodstuffs factory. Mr Gatty is visiting the sample room of the factory and Mr Dong is accompanying with hi

发表于:2018-12-03 / 阅读(116) / 评论(0) 分类 外贸英语口语

This is the VOA Special English Agriculture Report. Cows, sheep, goats and other animals can get mastitis, an inflammation in the udder, the organ where milk is produced. Milk from an untreated cow is still relatively safe to drink. But the milk is

发表于:2018-12-07 / 阅读(98) / 评论(0) 分类 VOA慢速英语2008(十)月

If you imagine the 4,500-million-odd years of Earth's history compressed into a normal earthly day, 请你想像一下。把地球的45亿年历史压缩成普通的一天。 then life begins very early, about 4 A.M., with the rise of the first simpl

发表于:2018-12-18 / 阅读(90) / 评论(0) 分类 万物简史

Food Safety and The Delaney Clause on today's Congressional Moment The Delaney Clause was named after its sponsor, New York Congressman Jim Delaney, and was an addition to the Federal Food, Drug, and Cosmetic Act of 1958. Worried that pesticides and

发表于:2018-12-27 / 阅读(58) / 评论(0) 分类 英语时差8,16

(woman) Word comes from California of a new weapon in the war on household pests. Two scientists working for a firm in Anaheim, California, have developed a method to eliminate insects without using dangerous chemicals. The new poison? Hot air. The

发表于:2018-12-30 / 阅读(101) / 评论(0) 分类 托福听力短文

The antimicrobial triclosan is a common ingredient in hand soap. But it's also found in shampoos, deodorants, toothpaste, even lip gloss. So it's not too surprising that triclosan also shows up in blood, urine, breast milk and mucus. But here's the w

发表于:2019-01-02 / 阅读(67) / 评论(0) 分类 英伦广角

Smaller Fingers Mean More Sensitive Fingertips A study in the Journal of Neuroscience finds that people with smaller fingers have more sensitive fingertips, probably due to a higher concentration of touch receptors in a given area. Cynthia Graber rep

发表于:2019-01-02 / 阅读(120) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 Scientific American(九)月

What prehistoric genius first discovered how to transform milk into delicious cheese? We may never find out, but we now know that humans were purposefully making cheese as early as 7,500 years ago. The finding is in the journal Nature. To make cheese

发表于:2019-01-08 / 阅读(99) / 评论(0) 分类 Scientific American(十二)月

Located in Nanping County, Aba Tibetan-Qiang Autonomous Prefecture, Jiuzhaigou Ravine stretches 80 kilometers in one direction and takes up an area of more than 60,000 hectares. The area consists of six scenic spotsChanghai, Jianyan, Nuorilang, Shuzh

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 旅游英语

The oil spill in the Gulf of Mexico is looming over the seafood industry. Prices are going up and the crisis could lead to more imported seafood in the coming months. But some people are questioning the safety of imported seafood. Lasting impact Tom

发表于:2019-01-13 / 阅读(69) / 评论(0) 分类 VOA标准英语2010年(五)月

威士忌副产品或会成为下一代汽车燃料 Scotland is the world's largest whisky producer. And Scottish professor has discovered how to take the waste products from distilling whisky and turn them into biobutanol, an alcohol that can be use

发表于:2019-01-14 / 阅读(86) / 评论(0) 分类 VOA标准英语2016年(一月)

DAVID GREENE, HOST: And now some bad news for bees. There is new evidence that they are being harmed by some widely used pesticides though it may be only if the bees already are vulnerable. Here's NPR's Dan Charles. DAN CHARLES, BYLINE: These pestici

发表于:2019-01-16 / 阅读(70) / 评论(0) 分类 2017年NPR美国国家公共电台7月

泰国农产品安全令人担忧 Thailand has long been recognized as a leading exporter of rice and other agricultural produce. But tests for pesticide residues are raising concerns about whether the food is safe. 长期以来,泰国是众所周知

发表于:2019-01-18 / 阅读(60) / 评论(0) 分类 VOA双语新闻 2012年10月

威士忌生物燃料技术 We know we shouldnt drink alcohol and drive. But whisky could help us be more environmentally friendly drivers. 谁都知道不能酒后驾车。但是,从威士忌副产品中可以提取出新的生物燃料给汽车提供

发表于:2019-01-19 / 阅读(48) / 评论(0) 分类 VOA双语新闻 2015年11月

You have bees to think every time you drizzle some honey into your tea. And the human-honey bee relationships is long standing. of honey bees in ancient Egympt. Record has been found that stone age bee harvest. But exactly when early farmers began to

发表于:2019-01-20 / 阅读(73) / 评论(0) 分类 2015年Scientific American(十一)月

What's the liveliest part of your kitchen, in terms of harboring bacteria? Is it the cutting board? The dish sponge? Or maybe your coffeemaker? Because even though caffeine has antibacterial effects, it turns out espresso machines can harbor a whole

发表于:2019-01-20 / 阅读(78) / 评论(0) 分类 2017年Scientific American(二)月

The document was released by the Central Committee of the Communist Party of China and the State Council. The policy paper underscores the importance of innovation and the supply-side structural reform in the agriculture sector. According to the docu

发表于:2019-02-14 / 阅读(76) / 评论(0) 分类 2016CRI中国国际广播电台

The antimicrobial triclosan is a common ingredient in hand soap. But it's also found in shampoos, deodorants, toothpaste, even lip gloss. So it's not too surprising that triclosan also shows up in blood, urine, breast milk and mucus. But here's the w

发表于:2019-02-14 / 阅读(189) / 评论(0) 分类 2016年Scientific American(八)月

Any simple organisms, alas, would have been baked away by the processes that turned ocean mud to stone. 哎呀,任何简单的生物都会在海洋污泥变成石头的过程中被烘烤没了。 Instead what we would see if we crunched up the rock

发表于:2019-02-17 / 阅读(89) / 评论(0) 分类 万物简史
学英语单词
accumulator piston
aminuria
amortization of other deferred expenses
anthonyi
Auger lifetime
backscatter factor
be in at the kill
bituen
Bowmaker's plasticity index
brittlest
Caldogno
call for tender
cani
car-drivings
circular tunnel lining
class Tardigrada
cogwheel
conduit head
contagious pneumonia of horses
dauricoline
deadlock
dim complexion
dormant mine
doyle
duppa
easts-south-easts
elaeosaccharum
electric cargo winch
endocystitis
environmental transition
etheride
forelevel
four-centered arches
foutz
freshwater cordgrass
front-of-the-house
full gauge railway
garcia effect
gas-discharger
genus commiphoras
grape blister mite
handling condition
head stevedore
hexoctahedron
higher-productivity
hyperellipsoids
hypermeters
immutability
induced jitter
interlayer shear
Jons Jakob Berzelius
leading truck equalizer
Lerici
Liebenwalde
linear order of gene switch
make a convenience of someone
manassa maulers
maxfield frederick parrishes
Megara Hyblaea
memory plint
microwave sample digestion system
musculus constrictor
n-channel FET
neck eels
normal operation earthquake
NTP server
numbering of sections
objectworlds
open coast
optical holographic interferometry
Osborne, L.
packeth
penal servitude
permanent strength test
petrol bunk
plain rib body machine
product
psychological novel
random sine wave
reconciliated
residue class ring
ridley's syndrome
rod hook
round bar roller
scabiouses
side roller
Sikutu
smooth texture
Spiraea dasyantha
straighten him out
supervisory control computer
swamp cottonwood
syndrome of heat accumulated in large intestine
Tainui
temps atomique international
threshold pressure
tunnel excavator
visceral plexus
wavenumber domain
wider margin
zantacs
zinc thiocyanide