燃料电池系统标准热效率

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(131) / 评论(0) 分类 VOA2003(下)-环境与健康

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(104) / 评论(0) 分类 VOA2003(上)-科技导航

This is the VOA Special English Economics Report. With oil around one hundred dollars a barrel, this may be a good time for a short history of petroleum. Petroleum has been important since ancient times. The Greek historian Herodotus told of its use

发表于:2018-12-15 / 阅读(47) / 评论(0) 分类 VOA慢速英语2007年(十一)月

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens,found in the mud at Oyster Bay,Virginia,has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(85) / 评论(0) 分类 有声杂志阅读

Chinese authorities have enacted a new regulation for car makers from April 1. All domestic and foreign auto makers that operate in China now run under a two-credit system, which consists of the index of Car Average Fuel Consumption - or CAFC - and t

发表于:2018-12-24 / 阅读(77) / 评论(0) 分类 2018CRI中国国际广播电台

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(109) / 评论(0) 分类 国家地理2008年

SCIENCE REPORT — March 27, 2002: New Stem Cell Study By Mario Ritter This is the VOA Special English SCIENCE REPORT. Researchers at an American medical center say special stem cells in normal human

发表于:2019-01-02 / 阅读(123) / 评论(0) 分类 科技之光

SCIENCE REPORT — February 7, 2002: Fuel Cell Cars By Mario Ritter This is the VOA Special English SCIENCE REPORT. The United States Secretary of Energy, Spencer Abraham, has announced a program to d

发表于:2019-01-02 / 阅读(77) / 评论(0) 分类 科技之光

EXPLORATIONS -February 27, 2002: Fuel Cell Cars By Mario Ritter VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell a

发表于:2019-01-02 / 阅读(93) / 评论(0) 分类 Explorations

Chinas National Development and Reform Commission has announced that the price of gasoline and diesel will be raised along with upgrades to fuel quality, in order to curb the countrys air pollution. 中国发改委已经公布,汽油和柴油价格将

发表于:2019-01-05 / 阅读(101) / 评论(0) 分类 CCTV9英语新闻2013年09月

By Mil Arcega Washington, DC 27 July 2006 watch Green Vehicle report The cost of gas at the pump keeps going up The high price of gasoline is changing the way we drive. And there are more concerns about the environment. Car manufacturers say those f

发表于:2019-01-06 / 阅读(128) / 评论(0) 分类 2006年VOA标准英语(七月)

By Ernest Leong Washington, DC 04 February 2008 It is winter in Washington, people bundled in heavy coats to shield themselves from the cold weather. Many seek refuge at indoor events. The recently held Washington Auto Show - where visitors got an up

发表于:2019-01-07 / 阅读(67) / 评论(0) 分类 VOA常速英语2008年(二月)

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(71) / 评论(0) 分类 Scientific American(十)月

President Barack Obama has announced Tuesday the toughest-ever fuel efficiency and emissions standards for vehicles sold in the United States. It is the first U.S. national limit on greenhouse gas emissions. President Barack Obama at the White House

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 VOA标准英语2009年(五月)

AS IT IS 2016-04-22 Japan Investigates Mitsubishi for Fuel Test Cheating 日本三菱就燃效测试作弊接受调查 It is not just Volkswagen trying to manipulate testing of its cars. This time it is a Japanese company, Mitsubishi. The Japanese au

发表于:2019-01-12 / 阅读(68) / 评论(0) 分类 2016年VOA慢速英语(四)月

By Mike O'Sullivan Los Angeles 16 November 2007 Auto makers who are showcasing their latest models at the Los Angeles auto show are expanding product lines in the hope of staying competitive in a changing market. Mike O'Sullivan reports, carmakers fr

发表于:2019-02-06 / 阅读(112) / 评论(0) 分类 VOA常速英语2007年(十一月)

China's General Administration of Quality Supervision, Inspection and Quarantine has pledged to keep 92 percent of the sample product quality above the state standards while reducing accidents of elevators and other mechanical devices. Improving the

发表于:2019-02-07 / 阅读(63) / 评论(0) 分类 英语新闻

China's General Administration of Quality Supervision, Inspection and Quarantine has pledged to keep 92 percent of the sample product quality above the state standards while reducing accidents of elevators and other mechanical devices. Improving the

发表于:2019-02-14 / 阅读(90) / 评论(0) 分类 2016CRI中国国际广播电台

PV solar technology is more complex. When sunlight hits a PV cell, electrons in the cell are knocked out of their orbits. Electric fields channel the electrons in a current used to generate electricity。 Unlike thermal solar panels, PV technology is

发表于:2019-02-15 / 阅读(55) / 评论(0) 分类 英语时差8,16

The State Council, China's cabinet, has released its timetable to upgrade fuel quality nationwide before 2017. The new standard for petrol and diesel, with sulphur content within 10 parts per million, is expected to be in practice nationwide by 2017.

发表于:2019-02-21 / 阅读(71) / 评论(0) 分类 英闻天下
学英语单词
acoustical standard
airsheds
arolla pines
arrangement of fire main
Aulacolepis
awkwards
bank overdraft
Barry Crocker
Bible-worship
biocrystallization
bulgerin
Cagan's adaptive expectation model
cardiac valve
catalasometer
CHP-DEPOT
classical beauty
clause number
Clonoulty
cochlearioides
computer operator
conchairamine
cooties
Cousteaus
crush a fly on the wheel
cyn-
davit-mounting
de magging
detailed survey
dialdehyde
diesel oil settling tank
eka-osmium
ennoyage
even-z element
foetation
fulgoraria pratasensis
gate-moneys
glofish
goerke
gold-minings
greasy blaes
harmonic flow
hematocrits
horizontal coplanar em
in-line combine
incomunicado
indicator anchorage
inoperative contract
ion-pair extraction
JSGF
Katunino
Kpedze
laser screen generator
long - term memory
macroconidium
Mansuur
Megaera
melwells
multimete
narcotine
natrium perchloricum
negamile
nonstationary model
nuby
oil distributor line plug
operating short-circuit
pedunculus corporis callosi
pepperoni
pin link
placenta succenturiata
Pleudihen-sur-Rance
Pleurotus sajor caju
pneunatic brake
pounding out of lubricant
protected procedure
protractor
PSNC
puts together
quadpot
radio frequency knockout
respiratory primordium
ring face
ringing back tone
roma (rome)
rotary dump
second scion
sedimentings
selenohomcysteine
sequential probability-ratio test
service work shop
sing-songy
skylight glass
sodium bromate
submission and delivery protocol (p3 protocol)
tawni
the minute
time-varying amplitude
typicalness
use of blanks
vasiles
where from
word picture
ynch