时间:2019-01-13 作者:英语课 分类:VOA标准英语2008年(十一月)


英语课
A unique program to capture carbon at coal power stations has been unveiled in Australia. Operators of a demonstration 1 plant say it is the first of its type in the world and involves burning coal in oxygen rather than air, which reduces carbon dioxide emissions 2. From Sydney, Phil Mercer reports.

The pilot program in the northern Australian state of Queensland intends to show that existing power stations can be refitted to burn coal in a far cleaner way.

Over the next four years the technology will be developed and officials believe it has the potential to be a gift to the world.

The system burns coal in pure oxygen, making it easier for the capture of carbon dioxide, which many scientists say contributes to a warming planet. The carbon dioxide is then liquefied and buried deep underground in a process known as geo-sequestration.

Queensland's Mines and Energy minister, Geoff Wilson, says the project could have significant environmental benefits.

"In traditional coal-fired power stations, the coal is burnt in air in a big furnace in air and then the carbon is released into the atmosphere," Wilson said. "What is being done different here is that instead of burning the coal in air, it is being burnt in pure oxygen so that the amount of carbon emitted from the coal-fired process is significantly reduced, therefore making it easier to capture with ancillary 3 technology the carbon produced and then to safely store it."

Australian and Japanese companies are backing the project, with partial funding from the government in Canberra.

The International Energy Agency has said that clean coal technology could help reduce greenhouse gas emissions by between 25 and 28 percent.

The environmental group Friends of the Earth is not convinced the technology will be a solution to climate change. A spokeswoman says it has "very limited potential" to cut emissions in the short term.

Critics argue the technology is unproven and will not guarantee Australia's coal dependent economy an easy or cheap passage toward a low-emission future.

Australia's hunger for cheap coal makes it one of the world's worst per capita emitters of greenhouse gases. Scientists warn that the Australian continent will be especially vulnerable to the effects of climate change and may suffer more severe droughts, floods and storms as a result.

Australia's Labor 4 government says tackling the causes of global warming are a major policy goal.

n.表明,示范,论证,示威
  • His new book is a demonstration of his patriotism.他写的新书是他的爱国精神的证明。
  • He gave a demonstration of the new technique then and there.他当场表演了这种新的操作方法。
排放物( emission的名词复数 ); 散发物(尤指气体)
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
adj.附属的,从属的
  • The transport corps is ancillary to the infantry.运输队是步兵的辅助部队。
  • This is just an ancillary business.这仅仅是一项辅助业务。
n.劳动,努力,工作,劳工;分娩;vi.劳动,努力,苦干;vt.详细分析;麻烦
  • We are never late in satisfying him for his labor.我们从不延误付给他劳动报酬。
  • He was completely spent after two weeks of hard labor.艰苦劳动两周后,他已经疲惫不堪了。
学英语单词
Acacia decurrens
alcohol fuel automobile
athodyd
average skin temperature
axle shaft steel
bang straw
black day
board see-saw
Botupora
breakdown of operation
breakeven level
brunt-vaisala period
c.p.d
Callionymus
Cercany
circus-circus
Clematis lasiandra
cloacal duct
collacin
communication interface assembly
contact thermal resistance
core inlet flow
customss
direct sum of Lie algebras
directors' box
electronic spectroscopy
emigration officers
equivalent effective temperature
erths
eyes up
ferrino
first critical angle
flotation agent
forming limit
general cultivating preferences
general standards of auditor
genus ischigualastias
green hardness tester
Grothendieck universes
Heathview
heresimach
high pressure boiler
hypopodia
hysterical aphonia
iatrapistic
Insert key
internal combustion engine oil
interstate commerce commission (icc)
Jamie Green
jetting sump transfer
Lamont Guyot
legume symbiotic nitrogen fixation
lemus lemus
lime juicer
long-term mortgage
mccosker
Meliosma rigida
meter loss
Newman limestone
night signaling
Nocardia asteroides
oah
Options Clearing Rules
package barter
pancytopenia
paparizov
permanent dynamic speaker
petronian
plain plate
proctoscopy
prosotas nora formosana
pulsatile secretion
qualitative expression
quick action chamber
reduced-order modeling
rfid
run away with the idea
s.u.v.s
sacrococcygeal defect
safrol(e)
serodiagnoses
shoot the moon
shouldarye
skeleton table macro
sluice cock
Smethwick
socionomic sex ratio
spatializing
springtown
steady-state stability factor
sunk object
T-direction
torque-converter temperature telltale
toy program
unmaximize
unobjecting
vidicon picture tube
weekly statement
wilding
x-arm machine
Xn.
yabbering