酸固化环氧树脂

Earth and Sky:Acid Rain 酸雨

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(147) / 评论(0)

(科普英语)Earth and Sky

VOA标准英语2014--Scientists Redouble Efforts After AIDS Virus Rebounds in 'Cured' Baby

Scientists Redouble Efforts After AIDS Virus Rebounds in 'Cured' Baby A baby in the United States who was seemingly cured of HIV - after receiving powerful drugs at birth four years ago - recently tested positive for the virus that causes AIDS. The c

发表于:2018-12-08 / 阅读(60) / 评论(0)

VOA标准英语2014年(七月)

知性英语－Acid rain 酸雨

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(182) / 评论(0)

知性英语

机械类词汇大全-1

1、一字螺丝批 slot type screwdriver 2、一点透视 one-point perspective 3、二合一黏合剂 epoxy resin adhesive 4、二合胶；混合胶 epoxy glue 5、二维的；平面的 two-dimension

发表于:2019-01-03 / 阅读(54) / 评论(0)

英文名句短语

PBS高端访谈:随着初创企业的更迭,科技高潮已经冲击到了威尼斯海滩

GWEN IFILL: Next: replacing surf shops with start-ups, as tech titans move to catch some rays and some waves.Steve Goldbloom reports. STEVE GOLDBLOOM: In San Francisco, computer programmers are like rock stars. Here in Los Angeles, the rock stars are

发表于:2019-01-27 / 阅读(57) / 评论(0)

PBS访谈商业系列

1.09 mln cataracts patients cured under subsidies

BEIJING, May 22 (Xinhua) -- More than 1 million cataracts patients in China have been cured in the past three years with the help of 872 million yuan (138 million U.S. dollars) in subsidies from the central government, according to Health Ministry fi

发表于:2019-01-31 / 阅读(209) / 评论(0)

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a la minute

abrolhos squalls

absolute bill of sale