单词：zinc oxide fume
单词：zinc oxide fume 相关文章
This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. On February 8th, we told you about scientists who had created a device worn over the knees that could harvest the energy you otherwise waste while walking.
Scientific American(二)月
Big City Killer If the cigarettes don't get 1 you the traffic pollution will. Up to a fifth of all lung cancer deaths in cities are caused by tiny particles of pollution, most of them from vehicle exh
英语沙龙2004全年合辑上
To Autumn SEASON of mists and mellow fruitfulness! Close bosom-friend of the maturing sun; Conspiring with him how to load and bless With fruit the vines that round the thatch-eaves run; To bend with apples the moss'd cottage-trees, And fill all frui
济慈诗歌和书信选(英文版)
Jo Shapcott One day the technicians touched souls as they exchanged everyday noises above the pipette. Then they knew that the state of molecules was not humdrum. The inscriptions on the specimen jars which lined the room in racks took fire in their
英语诗歌
One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water
60秒科学
One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water
Scientific American(四)月
US Motorists Fume, Politicians Bicker Over High Fuel Prices During the past month, gasoline prices have risen 20 percent or more in some parts of the country, draining drivers wallets as they fill up their gas tanks. It is very disturbing. It is very
VOA标准英语2012年(二月)
Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种，每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么
TED演讲教育篇
When I read a book from my mothers shelves, its not unusual to come across a gap in the text. A paragraph, or maybe just a sentence, has been sliced out, leaving a window in its place, with words from the next page peeping through. The chopped up pag
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SCIENCE IN THE NEWS - From A to Zinc: The Story of Vitamins By Nancy Steinbach Broadcast: Tuesday, March 29, 2005 (MUSIC) VOICE ONE: I'm Bob Doughty with Phoebe Zimmermann, and this is the VOA Special
科技之光
Zinc supplements reduce the average cold by about a day and also make symptoms（症状） less severe, according to the latest findings. There's no cure for the common cold, but there's no shortage of ways to treat the symptoms. For a number of year
英语新闻
Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We
实用英语
Whether you are in a career you hate or happily forging on with the dream job, youll have to put up with politics and personalities, so you might as well change careers and enjoy the things you do, right? 无论你正处于厌恶的职位中，还是在
英语口语
Katy On A Mission Katy B In this room of darkness I ain't undercover That won't stop my prowess rubbing off on to another Elevating higher as my body's moving lower Now I've reached my element you better move over oh But he doesn't he blocks my way I
好听的英文歌曲
By Jessica Berman Washington 13 February 2008 Scientists in the United States say they have developed fabrics that can generate electricity. Researchers say they have harvested enough electricity to power small electronic devices such as an mp3 playe
VOA常速英语2008年（二月）
Man's youth is a wonderful thing: it is so full of anguish and of magic and he nevr comes to know it as it is, until it has gone from him forever. It is the thing he cannot bear to lose, it is the thing whose passing he watches with infinite sorrow a
英语美文
Business 商业报道 Air conditioning 空调行业 Cool innovation 很酷的发明 An upstart hopes to make rival cooling companies sweat 一家新贵公司有望使制冷方面的竞争对手汗流浃背 ON A hot July day in 1902, the world's first
经济学人商业系列
Man's youth is a wonderful thing: it is so full of anguish and of magic and he never comes to know it as it is, until it has gone from him forever. It is the thing he cannot bear to lose, it is the thing whose passing he watches with infinite sorrow
英语美文
Business. 商业 Air conditioning 空调行业 Cool innovation 很酷的发明（制冷方面的发明） An upstart hopes to make rival cooling companies sweat 这个挑战者渴望把与之竞争的空调公司逼出汗来 ON A hot July day in 1902
经济学人综合