电焊钳,焊条钳;电极夹,焊条夹

TOP GUNS

In Top Guns, we check out four of the best bits of 1) kit. This time 2) assault rifles, that essential battle field companion. Take out targets Singapore-style with the SAR21. The SA80 is the British

发表于:2018-11-28 / 阅读(119) / 评论(0)

疯狂英语2002年

用Mp3背六级单词044

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)

Scientific American(十二)月

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

发表于:2018-12-18 / 阅读(63) / 评论(0)

有声杂志阅读

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

发表于:2019-01-02 / 阅读(265) / 评论(0)

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(72) / 评论(0)

Scientific American(八)月

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学英语单词

AEIOU TIPS

alcohol dependence syndrome

anti dogmatic

anti-condensation lining

arrangement of lines

balance of appropriation

bedded stratified

brand business plan

breath of someone's life

buck-bean

C-V characteristic