磷酸硅黏固剂

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(332) / 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

Good morning Mrs. Hall. If none of your teeth are bothering you, I'll restore the tooth with the largest cavity. 霍尔太太,早安。 假如你的牙齿不让你难受的话, 那么我就把蛀的最厉害的牙补一补。 This is the tooth th

发表于:2018-12-03 / 阅读(160) / 评论(0) 分类 口腔临床英语对话

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(184) / 评论(0) 分类 新世纪少儿英语

When Pyrex(公司名) cookware first came out, it was advertised as the ice box to oven, because itwas made of borosilicate glass which could weather large temperature changes without undergoing thermo-shock and shattering. But today, Americans Pyrex

发表于:2018-12-24 / 阅读(105) / 评论(0) 分类 Scientific American(九)月

This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? When Pyrex cookware first came out, it was advertised as icebox to oven. Because it was made of borosilicate glass which could weather large temperature chan

发表于:2018-12-24 / 阅读(100) / 评论(0) 分类 Scientific American(九)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

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(156) / 评论(0) 分类 医务英语

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(231) / 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(127) / 评论(0) 分类 CNN2010年(八)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(179) / 评论(0) 分类 Scientific American(四)月

A few months ago the fairy tale came true. 几个月前,童话故事成真了! We announced to the world that we know what these streaks are. It's liquid water. 我们向世界宣布,我们已经知道这些条纹是什么了。是液态水。

发表于:2019-01-18 / 阅读(139) / 评论(0) 分类 TED演讲科学篇

Cassini just a few months ago also flew through the plume, and it measured silicate particles. 卡西尼太空船几个月前又从这些飞溅的水流中穿过,它检测到了硅酸盐颗粒。 Where does the silica come from? 这些硅从哪来的

发表于:2019-01-18 / 阅读(148) / 评论(0) 分类 TED演讲科学篇

Science and Technology Plastics There and back again 科技 塑料 旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They

发表于:2019-01-26 / 阅读(136) / 评论(0) 分类 经济学人科技系列

manganese n. 锰(元素符号为Mn) mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化;adj. 熔铸的 monitor n. 监视器,监控 mudflow n.[地] 泥流 Neptune n. [天]海王

发表于:2019-02-02 / 阅读(198) / 评论(0) 分类 英文语法词汇

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(245) / 评论(0) 分类 VOA标准英语2010年(一月)

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(140) / 评论(0) 分类 英语新闻

The U.S. space agency NASA's Mars probe Phoenix has detected icy snow falling through the Martian atmosphere. The spacecraft has also discovered material in the planet's soil that is leading scientists a step closer in their conclusion that life pro

发表于:2019-02-08 / 阅读(136) / 评论(0) 分类 VOA标准英语2008年(十月)

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(308) / 评论(0) 分类 考研英语
学英语单词
arcuate structure
Arginotri-B
arterial hypotension
assisted pollination
aswan high dams
auxinautotrophic
barycentric subdivision
bookmarker
brakeload
budget talks
buying and selling
Bāghmundi
carmins
cellulose acetate film electrophoresis
checkerboard topography
chilliwack
CJR
classification drawings
clutch release yoke lever
computer-repair
conformal parameter
cross-flooding fitting
cubitals
debonds
dictionaried
diples
economy-wise
emission control monitoring system
Ephedra minima
execution of machine instruction
extra current
faceless bureaucrats
fictitious peak
Flavivirdae
flicker noise
fog labriaction
gainer
genus Gambusia
george gamows
gmat (graduate management admission test)
Haegeumgang
hardware performance study
hiphugger
honkytonks
hyphen-ate
incidence functions
irreparate
Jewspeak
judaistic
kachinas (n. america)
karkee
kronosaurus
liberd
Lieberkuhn's crypt
lillehaug
line-switch board
live down to
management of distribution channel
mercedarians
microspectrum
Mother Superiors
narrow rule
nasal wing retractor
negative strip
niederauer
nitrogen generating truck
nondomesticable
ollness
operating joule integral
packed cell volume (pcv)
paleoautecology
paleodicot
passenger car trailer combination
paternoster elevator
performance density
performeter period signal
phenol acetate
plagusia dentipes
plane wave technique
pole-change motor starter
prankings
precipitating jar
prestressed beam
quitar
rozinski
schooldays
self-contained generator
shillalagh
shipmans
Skulerud
succored
surface therapy tube
synchronous tie
thermal error
treaded water
tremelimumab
tristeza
tusiad
ultraluminescence
vrej
widtsoe-tollens' test
woofers