[橡胶] 混气炭黑

RACHEL MARTIN, HOST: The box office success of Black Panther is no surprise to UCLA sociologist Darnell Hunt. His annual report on Hollywood diversity is out today, and it shows that diverse casts and creators are just good business. Here's NPR's Man

发表于:2018-12-02 / 阅读(162) / 评论(0) 分类 2018年NPR美国国家公共电台2月

Lesson 4 Black-lead 第四课 黑铅 What is the black-lead in your pencil made of? If you take a bit of the metal which we call lead, you will find that it is grey in colour, very heavy, and not at all like the black-lead in your pencil. But the lea

发表于:2018-12-18 / 阅读(173) / 评论(0) 分类 英国学生科学读本

This is Scientific American's 60-Second Science. I'm Amy Kraft. Got a minute? Out of control drivers aren't the only thing city cyclists have to worry about. New research suggests that cyclists are at increased risk of lung damage because of soot. A

发表于:2018-12-24 / 阅读(173) / 评论(0) 分类 Scientific American(九)月

A: 欢迎大家来到这期的美语训练班! 我是杨琳! B: 我是Mike! 杨琳,来告诉大家今天都要学什么! A: 好! 今天,我们要一起来聊聊绿色环保,看看怎么表达沉重的负担,还要告诉你怎么说像纽约这样

发表于:2018-12-25 / 阅读(199) / 评论(0) 分类 美语训练班

导购口语: I'd like to see the Apple computers. Do you have? 我想看看那苹果公司生产的电脑,有吗? My office needs two copy machines. 我办公室需要2台复印机。 Here's a list of the items I want for my office: two boxes of

发表于:2018-12-25 / 阅读(142) / 评论(0) 分类 最In导购口语

Grammar Girl here. Today's topic is mixed metaphors. Politicians often provide good fodder for language commentary, and one of Barack Obama's comments during the debates has been rattling around in my head for a while now. He made a comment that some

发表于:2019-01-02 / 阅读(234) / 评论(0) 分类 英语语法 Grammar Girl

A little old lady goes to the doctor ... and says,

发表于:2019-01-02 / 阅读(235) / 评论(0) 分类 英文笑话

Broadcast: Feb 13, 2003 Demand for electricity is growing in Mexico, but the state-owned oil company, known as Pemex, is reducing the amount of natural gas it can provide for electrical generation. Th

发表于:2019-01-03 / 阅读(217) / 评论(0) 分类 VOA2003(上)-国际时讯

AS IT IS 2013-06-19 Citizen Scientists to Help Map CO2 Gas Each red dot on this screen shot from the Ventus website represents a power plant Welcome to As It Is, the daily magazine show from VOA Learning English. Im Mario Ritter. A music video shot i

发表于:2019-01-12 / 阅读(155) / 评论(0) 分类 2013年VOA慢速英语(六)月

AS IT IS 2013-05-29 A Call for Citizen Scientists to Help Map CO2 Gas Welcome to As It Is, the daily magazine show from VOA Learning English. Im Mario Ritter. A music video shot in space? That is now a reality. Today, we hear how Skylab led the way f

发表于:2019-01-12 / 阅读(178) / 评论(0) 分类 2013年VOA慢速英语(六)月

By Deborah Block Washington 13 May 2008 As the price of gasoline continues to rise in the U.S., more Americans are buying smaller, more fuel-efficient vehicles. Others are holding on to their big cars, in hopes that gas prices will eventually go down

发表于:2019-01-13 / 阅读(240) / 评论(0) 分类 VOA标准英语2008年(五月)

Study: Reducing Soot is Fastest Way to Slow Climate Change A new study finds that reducing carbon-rich soot emissions could be the fastest and most economical way to slow climate change and protect human health. Those dust-like particles released in

发表于:2019-01-13 / 阅读(141) / 评论(0) 分类 VOA标准英语2011年(九月)

By Jessica Berman Washington 19 November 2009 A new study has found that oceans are struggling to help regulate climate as more carbon dioxide, a leading greenhouse gas, is pumped into the atmosphere. The ocean absorbs more than one-quarter of all o

发表于:2019-01-14 / 阅读(189) / 评论(0) 分类 VOA标准英语2009年(十一月)

New Ways of Tracking Greenhouse Gas Emissions Developed With more than 18 million people living, working and driving in Los Angeles, the city often is covered in a hazy layer of smog. Stan Sander, senior research scientist at the U.S. space agency's

发表于:2019-01-14 / 阅读(169) / 评论(0) 分类 VOA标准英语2013年(七月)

If you've gone shopping for a car lately, you might have noticed that fuel economythe number of miles per gallonis creeping up. One reason is a more efficient type of fuel injection, called gas direct injection. Its a feature of half the new cars sol

发表于:2019-01-20 / 阅读(151) / 评论(0) 分类 2016年Scientific American(八)月

Soot was cause for a different concern in another recent study. Scientists with the American space agency, NASA, suggest it as a major cause of global warming. The study says the problem is how soot interacts with snow and ice. Snow and ice have high

发表于:2019-01-22 / 阅读(110) / 评论(0) 分类 英语时差8,16

Do you have gas? Beginners. What kind of a question is that? Are you talking about my body or my car? Well, actually, I am talking about your car. Gas, or petrol, as it is called in England, is a big subject at the moment. Driving a car has become re

发表于:2019-01-28 / 阅读(180) / 评论(0) 分类 英语博客 A cup of English

By Robert Berger Jerusalem 02 April 2008 Israel is strengthening security on its home front in a sign of war jitters. As Robert Berger reports from VOA's Jerusalem bureau, Israel is casting a wary eye toward Iran. Israel's security Cabinet has decide

发表于:2019-01-30 / 阅读(222) / 评论(0) 分类 VOA常速英语2008年(四月)

本期内容: Couldchipfathelpdirtyshippingcleanupitsact? Theglobalshippingindustryisasbigacontributortogreenhousegasemissionsasaviation, andtheheavyfueloilthatpowersitsgiantvesselsisexceptionallydirty-packedwithsoot, blackcarbonandsulphur.InSeptem

发表于:2019-02-20 / 阅读(138) / 评论(0) 分类 夏说英语新闻晨读

Topics: Famous Americans: Booker T. Washington; things Americans believe are lucky; horribly versus terribly versus awfully; full tuition reimbursement; carbon copy Words: freedmen peer activism accommodating desegregation historically black universi

发表于:2019-02-23 / 阅读(168) / 评论(0) 分类 美语听力 English Cafe
学英语单词
aileron droop
alloy structural steel wire
Amifur
astale
autodetecting
bagnoli di sopra
balloon shape
banjo hits
Bartolome, Cape
be in touch
built-in test (bit)
buttockss
calcifugous
channel selectivity
chantai
chemotherapeutical
clutch releasefinger
co-write
cock-robin
Collinsia bicolor
Cotswold stone
creditableness
critical shear rate
CSS style
dead cinch
delivery of deed
detection unit
dietretyne
diffuse porous wood
dihydroxyl derivative
discount warehouse
electroluminescent diode
Epilobium minutiflorum
epoxy ethane fumigation
extra-curricular
feltsman
first work piece
flash dryer
hardishrew
Histametizine
homoacetogenic bacteria
IEB
Inman's disease
insched
ion-atom collision
Ixobrychus
Judaean
laddertruck
lasiter
LDP
Leitha (Lajta)
lift-cabin door
lipscreens
marine amphibian robot
marshite
melanesia basin
metallic thin film memory
Mortola's sign
motor yacht
Musculi faciales
natural range
nonconducting barrier layer
normal running fit
olloes
one-hundred-year-old
oxygeneity
pairing model
Phlomis dentosa
Phulji
pico-gram
quadric of deformation
recadency
recursive algorithms
secondary hyperparathyrolidism
sell oneself short
shade ring
simplified micro-determination method
Sinchung-ni
single-disc clutch
spread rumours
tea bush trimmer
the big noise
thegns
thyh
tractor shovel
trading spread
trifluoper-ez-ets
tyndales
uncommiserating
underhead fillet
upon the listen
vehementness
vermitin
Wahrenholz
way to go!
WebShare
weightograph
were of consequence
white-handedly
work round to
zero oil