铱异常

美联社新闻一分钟 AP 2013-12-22

This pump has been changed out before. This is the starboard side. Back in August of 2010, we did a pump rr for a different failure. That was actually a failure of the pump. This is a valve inside the pump module itself. And so, this particular pump

发表于:2018-12-15 / 阅读(358) / 评论(0)

美联社新闻一分钟2013(十二月)

侏罗纪搏击俱乐部第168期:全球变暖是罪魁祸首

The K-T boundary marks the end of the age of dinosaurs, and the beginning of the age of mammals. KT界限层标志着恐龙时代的终点和哺乳动物时代的开端。 But does the K-T boundary really signify the absolute end of all dinosaurs? 不过

发表于:2018-12-28 / 阅读(294) / 评论(0)

侏罗纪搏击俱乐部

美国公司开发太空基地飞机追踪技术

US Company Developing Space-Based Plane Tracking 美国公司开发太空基地飞机追踪技术 LEESBURG, VA One of the reasons Malaysia Airlines flight MH370 hasn't been found is because the plane couldn't be tracked continuously over the ocean. I

发表于:2019-01-14 / 阅读(270) / 评论(0)

VOA标准英语2015年(八月)

英语听力：自然百科地球力场 Earth's Force Field—3

In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati

发表于:2019-01-22 / 阅读(332) / 评论(0)

自然百科2011年

英语听力：自然百科地球力场 Earth's Force Field—11

Blockson's computer model reveals that at the South Atlantic Anomaly, the magnetic field isn't just weaker than anywhere else on the planet. It's actually reversed polarity. There is a patch on the core in the South Atlantic where things are not poin

发表于:2019-01-22 / 阅读(278) / 评论(0)

自然百科2011年

维珍飞船沙漠坠毁 “太空一游”需25万美元

LOS ANGELES, Oct. 31 (Xinhua) -- A passenger rocket plane developed by Virgin Galactic's crashed on Friday after suffering an in-flight anomaly during a powered test flight over the U.S. state of California, the commercial company said on Twitter. 新华

发表于:2019-02-05 / 阅读(337) / 评论(0)

英语新闻

CCTV9英语新闻：南京通报丢失一枚放射源铱-192已锁定

A radioactive source which went missing four days ago has been found on Saturday evening. An Iridium 192 source, which was used to inspect a Sinopec industrial device in Nanjing by a testing company, had gone missing on Wednesday. Ten people in the s

发表于:2019-02-08 / 阅读(277) / 评论(0)

CCTV9英语新闻2014年05月

听电影学英语-生活大爆炸第一季 11．The Pancake Batter Anomaly(面糊异常): Sheldon感冒事件

[00:27.68]checkmate 将军! [00:32.28]again?! 又来?! [00:32.64]Obviously,you're not well suited for three-dimensional chess. 很显然你不适合玩三维国际象棋 [00:36.84]Perhaps three-dimensional candy land would be more your speed. 你的水

发表于:2019-03-16 / 阅读(526) / 评论(0)

听电影学英语-生活大爆炸

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学英语单词

air boundary layer

approximate contraction

classical school of political economy