焊条的工艺性;焊条工艺性

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morality influence undertake bonus excess vault pudding howl move thigh enterprise icy melody tribute intelligible hurl cavity portray cordial conscientious quantify electrode nose cite

发表于:2018-12-01 / 阅读(95) / 评论(0)

用Mp3背六级单词

SSS 2011-12-30

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(89) / 评论(0)

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发现可以给手机充电的细菌

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens，found in the mud at Oyster Bay，Virginia，has been discovered to transfer electrons directly onto an electrode

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有声杂志阅读

创业成功人士访谈录第97期:我是仁慈的独裁者(3)

because usability studies tend to be very vertical. 因为可用性研究是垂直的。 A study might ask，What do you think of this particular feature? 一项调查可能会问：您认为此特性如何？ But its not easy to ask, What do you thi

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创业成功人士访谈录

2010年麻省理工学院清洁能源奖揭晓(有声)

Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w

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60秒科学

SSS 2008-08-01

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(73) / 评论(0)

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additional audit procedures

adoption of indigenous method

amplitude ratio of 2T sine squared pulse and bar

apparent steady state

armed forces

attached condition