ozone的意思|ozone的解释-里氏词典

ozone ['әuzәun]

n. 新鲜的空气, 臭氧, 使人愉快的影响

[化] 臭氧

[医] 臭氧

ozone

[ noun ]
a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
<noun.substance>

ozone \o"zone\ ([=o]"z[=o]n or [-o]*z[=o]n"), n. [Gr. 'o`zwn
smelling, p. pr. of 'o`zein to smell. See {Odor}.] (Chem.)
A colorless gaseous substance ({O3}) obtained (as by the
silent discharge of electricity in oxygen) as an allotropic
form of oxygen, containing three atoms in the molecule. It is
a strong oxidizer, and probably exists in the air, though by
the ordinary tests it is liable to be confused with certain
other substances, as hydrogen dioxide, or certain oxides of
nitrogen. It derives its name from its peculiar odor, which
resembles that of weak chlorine.

The administration's record hasn't been entirely negative. Spurred by the warnings of scientists, it supported the international agreement to reduce emissions of chemicals that are destroying the Earth's ozone layer.
But methyl chloroform, whose potency for ozone destruction is less than 15 percent that of CFCs, remains unregulated and is viewed by much of industry as a potential "bridge" chemical as companies stop using CFCs as cleaning solvents.
Smog-causing pollutants, or ozone, are reduced through controls on automobiles and industry, with annual pollution improvements of 4 percent a year required over first six years.
Scientists said ozone depletion over Antarctica reached record levels in recent months.
That's because studies by Molina and others suggest the clouds enhance chemical reactions that allow chlorine from CFCs to break down ozone.
The Environmental Protection Agency has estimated that every 1 percent decline in ozone overhead means an eventual increase in skin cancer of 5 percent to 6 percent.
It argues that the cap at 1986 levels would be sufficient to head off a depletion problem and spur industry to develop adequate substitutes far less threatening to the ozone layer.
Only the ozone alarm can do that.
Toxie has an assistant, Nozone, an acrobatic pilot, who was disfigured when he accidentally flew through a hole in the ozone.
About 100 urban areas failed to meet federal ozone or carbon monoxide standards by the end of last year, the latest deadline set by the Congress.
Now, NOAA reported, satellite-borne instruments have been used to measure ozone using infrared radiation, allowing the ozone hole to be detected during the darkness.
Now, NOAA reported, satellite-borne instruments have been used to measure ozone using infrared radiation, allowing the ozone hole to be detected during the darkness.
He also moderated a two-day conference in Moscow on depletion of the ozone later in the the upper atmosphere.
Evans _ who gave a paper on his findings at the spring meeting here of the American Geophysical Union _ said the antarctic ozone hole may be causing a decrease in the level of ozone protecting the whole Southern Hemisphere.
Evans _ who gave a paper on his findings at the spring meeting here of the American Geophysical Union _ said the antarctic ozone hole may be causing a decrease in the level of ozone protecting the whole Southern Hemisphere.
The Arctic is not as bitterly cold as the South Pole, and the high ice clouds form less readily, Albritton said, but these clouds still form and can help promote the reactions that damage ozone.
Watson said it has been estimated that a 1 percent depletion of ozone causes a 2 percent increase in ultraviolet radiation.
Scientists blame CFCs for a seasonal "hole" in the ozone layer over Antarctica.
At 46, he reports for work dressed like the Boy Scout he once was, yet often spends his days immersed in cosmic dilemmas such as the future of the ozone layer.
The filters lose their effectiveness." Hewlett-Packard, which has about three million laser printers in use world-wide, says its newest machines produce much less ozone than older models.
The Antarctic ozone hole develops as such high-level deficits spread to lower altitudes, where most polar ozone is found, Hofmann said in a telephone interview.
The Antarctic ozone hole develops as such high-level deficits spread to lower altitudes, where most polar ozone is found, Hofmann said in a telephone interview.
It called on the Soviet State Committee for Environmental Protection to begin a "severe struggle against violators of ecological laws." "It should be pointed out for fairness' sake that the ozone layer was not destroyed completely.
Destruction of the ozone layer, which screens out ultraviolet rays that are harmful to health, is too dreadful to contemplate.
Yet despite optimism stemming from the ozone agreement, some officials here still say the difficulties of curbing the greenhouse effect are huge, maybe insuperable.
Since it contains no chlorine, the new compound has no effect on the ozone layer that keeps those cancer-causing rays from reaching the surface of the earth, when it breaks up in the atmosphere.
The establishment of a financial mechanism to assist developing countries to tackle ozone depletion marks a new and positive step in cooperation between the developed and developing worlds.
Scientists there have been studying radiation levels because of concerns about the depletion in the amount of ozone in the atmosphere high above the Antarctic.
CFCs deplete the earth's ozone layer, which blocks solar radiation that can cause skin cancer and crop damage.
Hayes says ultraviolet light is a known threat to frog's eggs, and increased amounts of the harmful radiation entering through the thinning ozone layer could be destructive.

您正在访问的是
中国词汇量第二的英语词典
更多精彩，登录后发现......

2005 - 2024 Dict.li Online Dictionary

验证码
用户名
密　码
	注册