二氧化氮气体中毒

VOA慢速英语2013 AS IT IS 2013-06-19 Citizen Scientists to Help Map CO2 Gas

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(47) / 评论(0)

2013年VOA慢速英语(六)月

VOA慢速英语2013 AS IT IS 2013-05-29 A Call for Citizen Scientists to Help Map CO2 Gas

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(39) / 评论(0)

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VOA标准英语2011--Fukushima Plant Operator: Nitrogen Pumpi

Fukushima Plant Operator: Nitrogen Pumping Operation Going Well A plan to inject nitrogen into the containment vessel around reactor 1 at the Fukushima Daiichi power plant appears to be working, the plant owner said Thursday. Higher pressure levels h

发表于:2019-01-14 / 阅读(54) / 评论(0)

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VOA标准英语2009-Oceans's Ability to Mop-Up Greenhouse Gas De

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

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英语听力：探索发现科学新发现：我们的大气层-9

We were left with this atmosphere made of molten rock and vaporous rock. It took millions of years for that atmosphere to fall out and to be replaced by an atmosphere made up of nitrogen and carbon dioxide and water vapour. These new gases came from

发表于:2019-01-23 / 阅读(36) / 评论(0)

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AGRICULTURE REPORT - Carbon Dioxide and Crops

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

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学英语单词

bowel btpass syndrome

breadth-length ratio

Brown Bk.

caesio caerulaurea

Calostoma cinnabarina

central intermediate grey matter

cinnamoylcocaine