半硅砖;硅质粘土耐火砖

By Gary Garriott Broadcast: September 15, 2003 This is Robert Covent with the VOA Special English Development Report. 1)Clay is found almost everywhere in the world. It is formed by the action of wind

发表于:2018-12-01 / 阅读(466) / 评论(0) 分类 VOA2003(下)-发展与科学

A young and successful executive was traveling down a neighborhood street, going a bit too fast in his new Jaguar. He was watching for kids darting out from between parked cars and slowed down when he thought he saw something. As his car passed, no c

发表于:2018-12-31 / 阅读(108) / 评论(0) 分类 我们都是有故事的人之生而为赢

There was a handful of clay in the bank of a river. It was only common clay, coarse and heavy; but it had high thoughts of its own value, and wonderful dreams of the great place which it was to fill in the world when the time came for its virtues to

发表于:2019-01-11 / 阅读(84) / 评论(0) 分类 阅读空间

Lesson 44 How Bricks Are Made 第44课 砖是怎么做出来的 We know that bricks are made of burned clay; but let us try to learn something more about them. Have you ever measured a brick? If you do so, you will find that its length is nine inches

发表于:2019-02-13 / 阅读(56) / 评论(0) 分类 英国学生科学读本

What has become of the water? Dry clay is full of tiny pores, and it has sucked up the water into its pores. 水上哪儿去了?干燥的粘土满是细小的孔洞,把水都吸到孔洞里去了。 Now let us mould our lump of soft clay into the

发表于:2019-02-13 / 阅读(47) / 评论(0) 分类 英国学生科学读本

Science and technology 科学技术 Materials science 材料科学 Don't slag it off 废渣别融掉 How to make bricks out of industrial waste 怎样用工业废渣制造砖块 BUILDING houses and offices out of toxic waste sounds like a pretty ecce

发表于:2019-02-16 / 阅读(37) / 评论(0) 分类 经济学人科技系列
学英语单词
abuses
accidentally-on-purpose
ageing of flour
apoalpinone
astigmatism against rule
asymmetrical valley
babes-ernst granule
budgered
By doing nothing we learn to do ill.
cabareted
caroba
codespaces
commencement ceremonies
concrete pond
contralateral routing of signals aid
crab canons
different sizes
diplomats
DM (decimal multiply)
double-agent
Drohiczyn
drum hook
epiotie
Eurycorymbus cavaleriei
event database
fishnets
function limiter
genus Sciadopitys
getter support
glu(e)ing
goniopora somaliensis
Gordon sign
grouchers
halfbrethren
hearken
Hering furnace
high-keys
high-protein diet
horkman
improvizing
instimulations
Japanese floweringquince
junction of metal for pipes
kapil
Këlcyrë
lead from the front
leader bud
lens corrected horn
lessius
liability under product warrants
Lorenz constant
magnevist solution
mixed random variable
mobecarb
momis
morula compaction
myeloid leukemia
negative dendrite
obtainings
optical conduction
ordinary lozenges
ougard
personal computer game
plunger split ring
pre-notification
preaxial
primary containment pressure
productibility of soil
qbit
ratio of greater inequality
read out time
reflective liner
remonstrant
revetment wall
rfe
Roigheim
rough-drying
saturated groundwater
sawtooth-clothed drum drafter
set grazing
slideway grinder
Steinhöring
stewed meat
story-line
straightforward circuit
strictly quasi-convex function
subgenual organ
Taenitidinae
textularids
theosol
thiocolchicine
tool palette
transversal flow subsonic chemical laser
Truk
tuberculin needle
turning fit
Uguru-shima
unduke
varactor diode for parametric amplifier
visual corridor
wine pot
wine waiters