单词：Carbon-60
单词：Carbon-60 相关文章
EXPLORATIONS - Carbon Monoxide Poisoning is a Silent Killer That Causes Death and Injuries Throughout the World By Marilyn Christiano Broadcast: Wednesday, November 02, 2005 (MUSIC) VOICE ONE: This is
Explorations
本讲为 2006 年新的教学内容，请对照教材、练习册、语法书听录音！ Unit 5 Text A The New Music 重点词语 distinct a. 独特的；明显的 The two concepts are quite distinc
自考英语（二）60讲
To better know their carbon footprint, a group of Australian landowners are doing their own calculations on what climate change could mean for them. They're looking at ways to improve yields and efficiency in their respective industries while lowerin
世界各地新闻集锦
As humans developed civilizations in Eurasia and Northern Africa, they also domesticated animals for food and labor: horses, cows, goats, pigs, sheep and a few others. But no evidence existed for the deliberate cultivation and breeding of animals in
2016年Scientific American(八)月
Plants can pull carbon dioxide, the planet warming greenhouse gas, out of earth's atmosphere. But these aren't the only living organisms that affect carbon dioxide levels and thus global warming. Nope, I'm not talking about humans. Humble sea otters
Scientific American(九)月
How big is your carbon footprint? Neil: This is Real English from BBC Learning English. I'm Neil. Lily: 大家好，我是杨莉。 Neil: This is the programme in which we look at words and phrases that you may not find in your dictionary. Lily: 地道英语和大
地道英语在线听
数千年来，大气中碳12和碳14的比例是稳定不变的，然而，二十多年以来的原子弹试验，使得碳14的水平增加。生长中的葡萄吸收了空气中的二氧化碳，而通过测试葡萄中的碳含量，就可以大致
60秒科学
By Greg Flakus Scientists in Texas are trying to find a way of reducing carbon dioxide air pollution by capturing the gas, compressing it and then putting it underground. This technique could also yie
VOA2004（下）--健康科技
This is Scientific American's 60-Second Science, I'm Christie Nicholson. Got a minute? During the last ice age our problem was too little carbon. Unlike today where too much carbon is causing global warming. Past glacial ages occurred partly because
Scientific American(七)月
What does an 800-pound gorilla eat? If you said: anything it wants, youre not thinking like a scientist. A scientist would say, Let me analyze the isotopic composition of its excreta and Ill get back to you. Because a new study shows that the ratio o
Scientific American(十二)月
By Tom Rivers London 19 November 2007 British Prime Minister Gordon Brown is urging all nations to rise to the challenges of combatting global warming, which he compared to the challenge of recovery after World War II. For VOA, Tom Rivers in London r
VOA常速英语2007年（十一月）
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
2016年Scientific American(八)月
Why Didn't Earth Freeze Completely? Research published in the July 2 issue of Nature reveals one reason our planet didn't succumb to an enveloping ice sheet during glacial ages. Christie Nicholson reports. [The following is an exact transcript of th
60秒科学
Economics Nobel Highlights Climate Action Necessity The first thing is that people have to come to grips with the difficulties we face. I think the scientists have and many of the people have, but the governments have to.Yale Universitys William Nord
2018年科学美国人10月
HARBIN, Jan. 31 (Xinhua) -- Carbon monoxide has been blamed for the Tuesday deaths of 12 workers in a coal mine in northeast China's Heilongjiang Province, a local official said Thursday. Three workers entered the Yongsheng mine in Dongning County to
英语新闻
Rev Up Photosynthesis To Boost Crop Yields 提高光合作用能使作物增加产量 Photosynthesis is surprisingly inefficient, only of the order of one to two percent. And one of the main culprits is an enzyme called RuBisCo. 光合作用效率低得
2018年科学美国人4月
Drivers in the eastern United States may soon start paying for the pollution made by their motor vehicles. Nine eastern states and Washington, D.C. are launching a system of pricing the carbon dioxide produced from burning gasoline and diesel fuel. M
2019年VOA慢速英语(一)月
NEW DELHI, Feb. 14 (Xinhua) -- BASIC countries including China, India, Brazil and South Africa have jointly expressed objection to European Union' s carbon tax on airlines flying into Europe during the 10th BASIC Ministerial Meeting on Climate Change
英语新闻
BEIJING, Sep. 16 (Xinhuanet) -- Government incentives are important to pave a low-carbon road to economic growth, but companies that improve their industry models and technologies are the main players and also benefit receivers, noted officials and i
英语新闻
BEIJING, March 1 (Xinhua) -- China on Thursday called on the European Union (EU) to take seriously the concerns of the international community on its carbon emissions charges, warning the 27-nation bloc not to complicate the matter. Chinese Foreign M
英语新闻