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
-patin
a BJ
abscess of external auditory meatus
aegadean isless
air charging system
alcoholic epilepsy
Almadenejos
almenar de soria
anomalists
anteroposteriors
Ariobarzanes
armande
Armenian rite
battle of Soissons-Reims
blemishless
Blumenbach's process
branches to isthmus faucium
bundala
bwana
cathodo-luminescence
colonizationist
combined marker and planning economy
contraceptive suppository
cool(ing) down
corchorpsis crenata s. et z.
corticorelin
cough caused by dryness-heat
coulogravimetric analysis
critical day-length
cryptogamic
Dacryomycetineae
dafne
depend on
duplicate invoice
emergency safety evaluation
filaroides hirthi
franz-josef
frozen attitude
gadamer
genus Antennaria
geophysical sciences
ground checkout system
Guo Biao
half discharge effect
hyposmic
hypotonic uterine dysfunction
interpretative rules
intraop
Japanese pink
kopriva
life time of energy level
linimentum camphorae et saponis
magnetooptic(al) Kerr effect
membrane lipid
multiple cropping areas
nanochemistry
no number
non unified
non-permanence
omnidirectional radio ranges
palingenetic character
Parnassia subscaposa
perstorps
phakocele
phonograph record
pirn feeding mechanism
popping off
positive lead
posteriorities
Primula cardiophylla
problem prognosis
public order act
rabbah ammon
Railway Act
Reorganization of state-owned enterprises
rhinemetal
saltonstall
samizdat
scomber scombrus japonicus
segmental phonemics
serial data form
shot density
skerred
SP (spare)
specially crossed check
spent fuel shipping
Spiradiclis xizangensis
street value
synctyial
tail cone
Taludipine
theoretical economics
three-way radix quicksort
tinning metal
track depression
trichoropis cednulli
two engine approach
uniform negotiable instrument
upper advisory area (uda)
who's to say
wicking action
zero-one optimization