单词：zinc-oxide varistor
单词：zinc-oxide varistor 相关文章
A Harvard commencement is a special occasion.How could anyone not have been thrilled by this morning's assembly？25,000people packed in the Harvard yard to celebrate one of the great occasions of life.I loved it all,and I love this great gathering a
白领英语晨读
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
丹尼尔看医生时，医生说他患了流感，要打针。小孩好像都很怕打针，我们的丹尼尔呢，他也怕吗？往下看就知道了。 Listen Read Learn Doctor 3: What seems to be the problem, kid? Daniel: I've got a sore throat, a runny nose and a headache. Doctor 3: AhHow long
英语口语大赢家
Oscar Pistorius is the South African Paralympic runner famous for trying to compete at the Olympics. He is known as Blade Runner because of the artificial limbs he uses to sprint. He is also dubbed the fastest man on no legs. Pistorius is the double
各国名人英文介绍
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
SCIENCE REPORT - February 28, 2002: Blood Test For Ovarian Cancer By Nancy Steinbach This is the VOA Special English Science Report. American medical researchers say they have developed a simple blood
科技之光
「在神圣的荒野中，我们能看见自己最良善的特质」野生生态保育人士博伊德?瓦提(Boyd Varty)与我们分享动物、人类及两者相互关系的故事，也就是南非谚语Ubuntu所言：「是你成就了我」。博伊
TED公开课:地球村
热爱恶搞的投资家Yossi Vardi针对写博客时的危险性发表了详尽的见解。尤其给男性们警醒。
TED公开课:(不只是)男人经
By Paige Kollock Washington, D.C. 18 January 2006 view Cancer report Medical experts say it is the biggest breakthrough in more than a decade in the fight against ovarian cancer, a rare but deadly for
2006年VOA标准英语（一月）
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
PRETORIA, Feb. 20 (Xinhua) -- The second day of paralympian Oscar Pistorius' bail hearing ended on Wednesday without a court ruling on his application. Magistrate Desmond Nair ruled that Pistorius would remain in custody again at the Brooklyn police
英语新闻
PRETORIA, Feb. 19 (Xinhua) -- The Pretoria Magistrate Court on Tuesday postponed Paralympian Oscar Pistorius' bail hearing to Wednesday. Magistrate Desmond Nair ruled that the bail hearing be heard under Schedule 6 Offence of the Criminal Procedure A
英语新闻
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
34 过多服用雌性激素有可能引发卵巢癌 DATE=4-12-01 TITLE=SCIENCE REPORT -Estrogen and Ovarian Cancer BYLINE=Mario Ritter (Start at 1'00
科技之光
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
MADRID, Oct. 22 (Xinhua) -- Sevilla goalkeeper Javi Varas was the hero of the night as his side produced a stunning defensive display to earn a 0-0 draw against FC Barcelona in the Camp Nou stadium. Varas made a string of spectacular saves, including
英语新闻
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）
电脑英语--常见硬件篇CPU：Central Processing Unit，中央处理单元，又叫中央处理器或微处理器，被喻为电脑的心脏。 RAM：Random Access Memory，随机存储器，即人们常说的内存。 ROM：Read－Only Memory，只
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