选[择通]透[性]膜, 选择性渗透膜

M: Have you finished reading the book you bought last month? W: oh, I didn‘t read straight through the way you read a novel,I just covered a few chapters which interested me most. Q: How did the wom

发表于:2018-11-29 / 阅读(268) / 评论(0) 分类 大学四级对话理解

Rachel Lee: The housing market keeps losing steam. Sales of previously owned homes fell 5. 7% last month according to the National Association of Realtors. If you're looking for a house , the group's

发表于:2018-12-05 / 阅读(159) / 评论(0) 分类 商业报道2006年

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 Scientific American(一)月

The Green Alley program is an effort to reduce flooding, save energy and decrease heat in the city. Transcript of radio broadcast: 13 July 2008 This is the VOA Special English Development Report. An environmental project in the American city of Chic

发表于:2019-01-11 / 阅读(142) / 评论(0) 分类 VOA慢速英语2008年(七)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Steve Ember. This week, we will tell about an American study of the brain disorder schizophrenia. We tell about cars that use hydrogen as fuel. And,

发表于:2019-01-11 / 阅读(233) / 评论(0) 分类 VOA慢速英语2008(十)月

Copper Metal Kills Viruses on Contact 铜能杀死细菌和病毒 Even in the world of medicine, what is old is new again. 医药界也刮起了复古风。 Thousands of years ago, Egyptians used it to sterilize drinking water. Ancient Romans, Aztecs

发表于:2019-01-12 / 阅读(229) / 评论(0) 分类 2016年VOA慢速英语(二)月

(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g. The hydrogen atom is near1y l6 times as

发表于:2019-01-17 / 阅读(170) / 评论(0) 分类 英语口译

英语中表示倍数减少的表达方法(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g

发表于:2019-01-17 / 阅读(171) / 评论(0) 分类 英语口译

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

发表于:2019-01-26 / 阅读(218) / 评论(0) 分类 经济学人科技系列

Going to bed in icy bedrooms, getting up in icy bedrooms, waiting patiently for Mum to spare a little hot water from the great kettle on the hob so that washing was not a teeth-chattering, painful ordeal. One day small Hal started to cough and wheeze

发表于:2019-01-29 / 阅读(179) / 评论(0) 分类 荆棘鸟

But others may not agree, they emphasize that today's society is not what it was. If one man has many kinds of knowledge, he will have more chances to succeed. If a man knows much in one field but knows nothing in other fields, he may be useless. Si

发表于:2019-02-01 / 阅读(144) / 评论(0) 分类 四六级写作指导

第一招:在电脑旁放上几盆仙人掌,它可以有效地吸收辐射。 第二招:对于生活紧张而忙碌的人群来说,抵御电脑辐射最简单的办法就是每天上午喝2至3杯的绿茶,吃一个橘子。 第三招:上网

发表于:2019-02-03 / 阅读(183) / 评论(0) 分类 阅读空间

Drugmakers and antibiotics 制药商和抗生素 The path of least resistance 最省事的办法 Governments reckon that drug firms' research efforts need a shot in the arm 政府认为需要鼓励药企的研发工作 A GROWING worry in medicine is

发表于:2019-02-16 / 阅读(165) / 评论(0) 分类 经济学人商业系列

在我们的生活中,死亡是我们所有人必定会遇到的事情,无论是家庭成员还是宠物,甚至是你都将有终结之时。事实上,每分钟世界上大约就有100人死亡。但在人死之时到底会发生什么呢?

发表于:2019-02-17 / 阅读(228) / 评论(0) 分类 阅读空间

2010上海世博会:日本馆之面观 The Japan Pavilion, which is always among the most popular pavilions during previous World Expos, is expected to attract 17,000 visitors every day,The centerpiece performance of the pavilion will be an opera w

发表于:2019-02-22 / 阅读(235) / 评论(0) 分类 实用英语

Science and technology 科学技术 Microbiomics 微生物组学 A virus shield 病毒防护 Viruses help keep people disease-free 病毒能够帮助人类免遭疾病 THE story of the microbiomethe community of tiny organisms that coexist symbiotica

发表于:2019-02-24 / 阅读(195) / 评论(0) 分类 经济学人科技系列

Amd of course, you've just heard and you already know that we're running out of antibiotics. 当然,你一定听说过,而且你早就知道了,我们快要没有有效的抗生素了。 Bacteria are incredibly multi-drug-resistant right now, a

发表于:2019-03-04 / 阅读(167) / 评论(0) 分类 TED演讲教育篇

then, ascending by a ladder to the summit, have a peep down the mouth; 然后,用一架梯子爬到那峰巅去,往下瞧一瞧它的嘴巴。 and were it not that the body is now completely separated from it, 如果它那身体现在不是已跟脑

发表于:2019-03-10 / 阅读(297) / 评论(0) 分类 白鲸记

I think that all this indirectly proceeds from the helpless perplexity of volition, 因此,我认为,这种种由于意志纷乱无能而间接产生的现象, in which their divided and diametrically opposite powers of vision must involve them

发表于:2019-03-10 / 阅读(316) / 评论(0) 分类 白鲸记

Reading Selectively Or Extensively? 1.有人认为读书要有选择 2.有人认为应当博览群书 3.我的看法 Reading Selectively Or Extensively? How should we read? Should we read selectively or extensively? Everyone has his own view. Som

发表于:2019-03-11 / 阅读(296) / 评论(0) 分类 四六级写作指导
学英语单词
.45-caliber
account of profit
acute miliary pneumonitis
alkanamyer
ampster
Andropogon gryllus
beater bar
bipolar computer element
block offer
border areas
Brunner's gland
BScs
candy flips
casting moulding
cavity of pharynx
circle-dance
cost chart
covering agent
crematogasters
dairy heifer replacement
detailed construction schedule
detailed data
Dhū Shaykh
di-arabinose
educational tourism
energy of signed integral
fanny-magnet
flat-bottomed barge
flat-channel noise
flat-panel dispaly
focalising
Fong theory
formation volume factor for oil
foul the trail
gairth
gigglier
half-block
haritalodes taiwanalis
Himeville
hose fitting
IHVE
in total
infrasil
intercontextual
international bilateral cooperation
isofacial line
itucs
ivory trees
liamine
limature
list of exchange rate quotations
look awful
lost-wax process
low-silicon bronze
lubrication duct
magnesium chloride process
mammula
Marginifera
Marquis of Queensberry rules
mikvas
miswrest
MSTA
mucilago ceratoniae
Neottianthe compacta
numeric keypunch
Old English
open on the print
perfect neutrality
phreatic discharge
plain hypo
political apathy
pontoon crane
pornographess
product data management
pumpout valve
pure selection
push rod brake cylinder
redundant tie
reticularly
rinhoel
Rungia bisaccata
salutaridine
sconion
scotart
shireman
sit upon sth
slothly
start gate
starting time limit
static-base alignment
streetworthy
stylization of the self
sub-element
t'Internet
the empty nest
the relationship between
thyrostroma mori (nomura)von h nel
tissue review
to televise
towrope resistance
two-stepping
week in week out