[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
a university
access grant channel
acute hemorrhagic lesion of gastric mucosa
AGP bus
aimless
altercations
anthopogon
anticancer drug
as fresh as paint
bayted
Bertrand's reagent
Blindheim
Brussels quilling
by-pass operation
bye-line
Cereus flagelliformis Mill.
Chinethazone
circular electric wave
clearcreekite
cold drink
CT colonography
diphtheric
eifelite
entreth
factored
federal job safety law
flanging hydraulic press
foisters
formatted tape
former wing rib
fruit pulse
great inagua i.
holographic photography
hurds
ice-hill
inferring
insufficient for its purpose
interstock hybrid
introsumed
ionospheric hole
James Hargreaves
kading
katims
kinematic positioning
lacinulae
lift range
Linux Security Modules
local illumination transformer
malrauxes
mataeocephalus cristatus
maxillary buccal frenum
Medusetta
microanalytical
microarchitectures
microgravimetry
Miller I.
monkeypox
muffler outlet pipe bracket
N-PG
obeidat
open off
orchideus
Perilla frutescens crispa
perpendicular recording
plumber's snake
plutonium triggers
Polviten
potential plotting tank
praize
prins
pseudoscientific
quench aging
re-afforestations
recasting
rollbags
self-taught experts
sertanejo
shoulder screw
Simon's disease Barraquer's disease
sit ... out
space radiocommunication
stand-alone machine
static cell memory
static oceanography
stop and license plate light cable
suppressor factor
testaments
the strings
Theodoric I
Tonle Sap
trade wind front
transmission equation
unilocular hydatid disease of liver
unrejuvenated
unsuccessful auto-reclosing operation
Vauban's fortification pictures
vice-like
violet
virtual
Wiley Ford
William Ralph Inge
workyday