氧化锌接合剂

Lesson 12 Text A What a Mess! Bill Lane has just touched some wet paint. MR FIELD: You mustn't touch the wet paint, Bill. BILL: I'm sorry. I won't do it again. MR FIELD: Try to be more careful in futu

发表于:2018-11-27 / 阅读(330) / 评论(0) 分类 新概念英语青少版

Section A Short Conversation [00:02.98]1. M: How is your classmate Lucy,Mary. [00:07.08]The last time I came to see you. [00:09.01]you were about to take her to the hospital. [00:11.44]W: She came home last week [00:13.40]The operation was very succe

发表于:2018-12-01 / 阅读(273) / 评论(0) 分类 决胜六级英语听力

V@enook.cn Lesson 16 It looks like cement. Professor Boffin wants to bake a cake. I can't find the flour. He looks in the storeroom. Ah!Here's some flour! Look!My cake's ready. It books like cement. If feels like cement. It tastes like cement. Look a

发表于:2018-12-13 / 阅读(183) / 评论(0) 分类 新世纪少儿英语

This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. On February 8th, we told you about scientists who had created a device worn over the knees that could harvest the energy you otherwise waste while walking.

发表于:2018-12-24 / 阅读(118) / 评论(0) 分类 Scientific American(二)月

Grammar Girl here. Todays topic is cement versus concrete. Guest writer Sal Glynn writes: Accuracy is important. You might think concrete and cement are interchangeable, but you'll quickly find that you're mistaken when some guy at Home Depot rolls h

发表于:2019-01-02 / 阅读(234) / 评论(0) 分类 英语语法 Grammar Girl

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:2019-01-02 / 阅读(150) / 评论(0) 分类 60秒科学

By Ben Gilbert Baghdad 11 January 2006 An Iraqi mason works on a wall surrounding a new school on the outskirts of Basra (file picture) Iraq has been hit with a construction boom - in no small part du

发表于:2019-01-07 / 阅读(229) / 评论(0) 分类 2006年VOA标准英语(一月)

I signed an order last night to BP and about 8:30 eastern daylight time this morning they started pumping cement into the well. They will do that throughout the day. When that is done I'll make sure they have all the cement in place where it needs to

发表于:2019-01-07 / 阅读(125) / 评论(0) 分类 CNN2010年(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(168) / 评论(0) 分类 Scientific American(四)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(161) / 评论(0) 分类 TED演讲教育篇

VOA's Weekly Science and Technology Magazine Art Chimes 05 January 2010 MUSIC: Our World theme This week on a special edition of Our World, some of our favorite stories of the past year ... including a high-tech wrinkle to that humblest of building m

发表于:2019-01-23 / 阅读(129) / 评论(0) 分类 VOA标准英语2010年(一月)

SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins By Nancy Steinbach Broadcast: Tuesday, March 29, 2005 (MUSIC) VOICE ONE: I'm Bob Doughty with Phoebe Zimmermann, and this is the VOA Special

发表于:2019-01-30 / 阅读(174) / 评论(0) 分类 科技之光

Zinc supplements reduce the average cold by about a day and also make symptoms(症状) less severe, according to the latest findings. There's no cure for the common cold, but there's no shortage of ways to treat the symptoms. For a number of year

发表于:2019-02-05 / 阅读(132) / 评论(0) 分类 英语新闻

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(191) / 评论(0) 分类 实用英语

Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele

发表于:2019-02-08 / 阅读(243) / 评论(0) 分类 VOA标准英语2010年(一月)

By Jessica Berman Washington 13 February 2008 Scientists in the United States say they have developed fabrics that can generate electricity. Researchers say they have harvested enough electricity to power small electronic devices such as an mp3 playe

发表于:2019-02-08 / 阅读(117) / 评论(0) 分类 VOA常速英语2008年(二月)

1. BP officials say they plan to begin forcing cement down the blown-out Gulf oil well today. The company plans to shove cement down from pipes attached to ships a mile above the sea. Yesterday, crews were able to force down the oil with mud. 2. A fe

发表于:2019-02-11 / 阅读(197) / 评论(0) 分类 美联社新闻一分钟2010(八月)

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(169) / 评论(0) 分类 天天商务口语

BEIJING, July 17 (Xinhua) -- A senior leader of the Communist Party of China (CPC) on Tuesday said China is willing to cement a strategic partnership with Ukraine. He Guoqiang, a member of the Standing Committee of the Political Bureau of the CPC Cen

发表于:2019-02-18 / 阅读(166) / 评论(0) 分类 英语新闻

发表于:2019-02-25 / 阅读(307) / 评论(0) 分类 考研英语
学英语单词
Abelian domain
aphelias
Athenas
Atterberg test
ballast coil
Berandang, Sungai
bouncy castle
bus control chip
calf pen
call loan rate
cartwhippings
cascade performance
Cauloside
Chechin
chiloscyllium griseum
coccinella
cold blooded
conceptual change
correct a deviation
creep someone out
crocodylid
cross stitched belt
Cryptogamia
de-epithelized skin flap
done brown
dreelite
earth imaging
egg-breaking machine
electrical-type detector
elrko
environment effect on gene expression
Fat Nigrosine B
fin type radiator
first-class product
fumarle
gresh
harbour installation
Hetepheres
hoonah
horse-shoe clamp
Hubble parameter
hydrauger
hyperbolic metric geometry in a plane
induction loss
infra ray width gauge
Ismaily
kinotannic acid
laver wafer drying machine
ligamenta mallei superius
lindon
Macuspana
magnetic blow-out spark gap
medical officer
mercurial nephrosis
mercuroxyl
methyl red (mr)
missing links
mobile container crane
multiple file clause
nonanswering
oiled silk
Opposite Person for Administration
optimize
ozouf
partier
payings-in
picowave
plated weight
platinum-level
pre-operational stage
prophaneness
quantitative quality of COD
randomisings
real feature
resistance to sudden heating
resource hierarchy
rimrocks
S type turbine
Sangowo
Santa Clarita
semestral
semi-monocoque construction
shed for passengers
sialolithiasis
slabbing mill
stampede into
stereotemplet triagulation
Stock rating
streamline chart
suillus americanus
swagelok
Sīdi Abd el Rahman
tai kok tsui
thermal elongation and contraction
thioguanidin
thralldom
turny
ulisse
under someone's very eyes
visible light detector
weighting method
windward truss