[化] 滤纸浆

The torn rags are then boiled in water to which lime and soda have been added. This mixture removes all grease, stains, and colouring matters. The clean white rags are next put with water into another machine, which pulls the fibres apart, tears them

发表于:2018-12-07 / 阅读(103) / 评论(0) 分类 英国学生科学读本

Paper's Long March 纸张的演进 Remember when the 1980s brought us the first wave of the modern computer and electronics revolution? At that time, heady young technocrats forsaw the paperless office. It was claimed that paper would become a thing of

发表于:2018-12-08 / 阅读(395) / 评论(0) 分类 赖世雄高级美国英语

Technology Report - How to Do It: Making Paper by Hand This is the VOA Special English Technology Report. The earliest process of making paper was done almost five thousand years ago in Egypt and the Nile Valley. In those days, paper was made from st

发表于:2018-12-16 / 阅读(120) / 评论(0) 分类 2011年VOA慢速英语(七)月

The Cotton Tree 棉花树 Sing well fare the cotton-tree! 一起来祝愿棉花树 Bravely may it grow, 长大吧,发出勇气的光彩! Bearing in its seeded pod 让种荚里藏身的棉朵, Cotton white as snow! 像雪花一般洁白! Spi

发表于:2018-12-18 / 阅读(102) / 评论(0) 分类 英国学生科学读本

How To Make Paper In Your Own Kitchen Paper is an indispensable part of modern life. In fact, each American uses about 600 pounds of paper every year. Where does all this paper come from? Actually,paper making technology is really quite simple, so

发表于:2018-12-27 / 阅读(88) / 评论(0) 分类 英语时差8,16

Ever since money was invented there have been people trying to fake it. Thats why its important for everyone to know how to spot a fake banknote. And the best thing to do is to know by heart what genuine notes should look like. Here is our expert Lee

发表于:2018-12-27 / 阅读(102) / 评论(0) 分类 英语时差8,16

Remember how stiff jeans used to be? In the olden days, even sitting down or climbing stairs was hard. But these days jeans can be skintight yet surprisingly comfortable. The secret is the spandex, which they add to denim to make it stretchy and comf

发表于:2018-12-28 / 阅读(164) / 评论(0) 分类 轻松英文阅读

On the tops of the mountains there are vast fields of snow and ice like frosting on a huge cake, 山顶有大片大片雪和冰,就像一块巨大的蛋糕上撒满了糖霜。 but as this snow and ice sinks down to the valleys it melts and the wat

发表于:2018-12-28 / 阅读(112) / 评论(0) 分类 美国学生世界地理教材

He filled the pot with water. He put the pot on the burner. He put a lid on the pot. He turned on the burner. He took a bag of coffee beans out of the cabinet. He opened the bag. He poured some beans into the grinder. He ground the beans in the grind

发表于:2019-01-02 / 阅读(128) / 评论(0) 分类 简单慢速英语阅读

From VOA Learning English, this is the Health Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth. The capital, New Delhi, has some of the world's dirtiest air. The pollution was a call for a

发表于:2019-01-03 / 阅读(152) / 评论(0) 分类 2018年VOA慢速英语(一)月

[00:02.17]Unit 20 New Frontiers Culture Corner [00:06.79]Ancient Chinese Inventions [00:09.71]Paper making [00:11.18]The ancient Chinese invented [00:13.43]and were using paper about 2000 years ago. [00:17.36]Early paper in China was made [00:19.20]f

发表于:2019-01-10 / 阅读(364) / 评论(0) 分类 北师大版高中英语模块7(选修)

This is the VOA Special English Development Report. The earliest process of making paper was done almost five thousand years ago in Egypt and the Nile Valley. In those days, paper was made from strips of the papyrus plant. Modern paper-making began

发表于:2019-01-11 / 阅读(98) / 评论(0) 分类 VOA慢速英语2009年(七)月

This is the VOA Special English Development Report. The earliest process of making paper was done almost five thousand years ago in Egypt and the Nile Valley. In those days, paper was made from strips of the papyrus plant. Modern paper-making began

发表于:2019-01-11 / 阅读(207) / 评论(0) 分类 VOA慢速英语2008年(二)月

AS IT IS 2015-08-28 Book Pages Could Provide Safe Drinking Water 书页可以提供安全饮用水 The expression a thirst for knowledge may soon have a new meaning for millions of people who have no way to get clean water. Researchers have developed

发表于:2019-01-12 / 阅读(170) / 评论(0) 分类 2015年VOA慢速英语(八)月

It's just the latest batch of holiday catalogs arriving Ted Landphair | Washington, DC 23 December 2009 Photo: Nenyaki, Flickr Creative Commons There aren't many full-service department stores any more and thus, not many Christmas window displays, ei

发表于:2019-01-13 / 阅读(96) / 评论(0) 分类 VOA标准英语2009年(十二月)

Ancient Papyrus Reed Could Hold Key to Water Conservation Ancient Egyptians turned papyrus into paper and provided the world with it for thousands of years. Hundreds of thousands of books in the Royal Library in Alexandria and Rome's 58 public librar

发表于:2019-01-14 / 阅读(143) / 评论(0) 分类 VOA标准英语2014年(七月)

We grew up believing that being Chinese was the greatest advantage in life; in our house, everything important in life came from China, was invented in China, owed all to the Chinese. 我们始终相信作为中国人是生活中最大的优势。在我

发表于:2019-01-18 / 阅读(137) / 评论(0) 分类 名校励志英语演讲

Beginners. I walked into the kitchen this afternoon, and I found my son, Robert, climbing through the kitchen window. What on earth are you doing? I asked him. I wanted to open the window so I can pass you all my pumpkins. Okay, I replied, still a bi

发表于:2019-01-28 / 阅读(118) / 评论(0) 分类 英语博客 A cup of English

We all know plastic bags are bad for the environment. They litter the landscape and pose a threat to wildlife. 众所周知,塑料袋危害环境。乱丢塑料袋破坏自然景观,还对野生生物构成威胁。 Discarded plastic bags accumul

发表于:2019-02-14 / 阅读(116) / 评论(0) 分类 中英双语新闻

Ever since money was invented there have been people trying to fake it. Thats why its important for everyone to know how to spot a fake banknote. And the best thing to do is to know by heart what genuine notes should look like. Here is our expert Lee

发表于:2019-02-16 / 阅读(110) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
1-hydroxy-2-acetonaph-thone
a good samaritan
ardasse
asthmolysine
autocycles
avertive
aviamide-6
Bio-beads S
bottom-dump trailer
breakdown-torque speed
by ordinary mail
Cabiri
caramiphen hydrochloride
carpet-bags
casting shrinkage
ceftazidine
cirumferential
civil air defence
cloud height meter
communication map
concipiency
copying ribbon
correlation detection scheme
countdom
cut - throat competition
dacryocystectomy
dealkylates
Diever
diphenylamino-azo-m-benzene sulfonic acid
dull effect
dushed
ectocoel
electrostatic rice refiner
ellipsoidalis
embroidereth
ergostadiene
error condition (in calculators)
error measuring element
fine champagne
fluoro-scandium-complex
gain work experience
gateage
Gerdy
gudewives
herba lycopi
His Royal Highness
homeland-security
household saving
imamu amiri barakas
in-water
intellable
interstitial radiation
inviting over
ischiac
iskender
Kaikei
landlouper
leguminous plants
locule
logarithmic potential
long-throw
macaco
maneuvering room
masking solution
minority language
missouri primroses
Moreno, Pta.
mucostatic
ND (noise detector)
Palpigrada
phoront
photothermal displacement
piedmont scarp
plastic-laying machine
pucked
returned value specification
rhombic enantiomorphous hemihedral class
roller finder
rutherfordite
secretion physiology
shamrock pea
shelfback
sinusoidal undulation number
special high resolution
special proxy
Sphaeralcea
spiral wound plastic reinforced case
stercohilin
straight fluted tap
suborder Scorpaenoidea
substantialised
summarizer
superintendent of registrar
syimmetric(al)
transverse bent
triethyltin
Tzermiado
unloading valve
veto pressure unloading gear
Wallace, Mt.
washtech
Weierstrass's canonical product